Games like 39 Days to Mars on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like 39 Days to Mars are available at the bottom of the page.

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Trine 3: The Artifacts of Power

Trine 3: The Artifacts of Power is a platforming game of action, puzzles and adventure, and the sequel to the award winning Trine and Trine 2. Reunite with the three heroes in an all-new adventure, now for the first time in full 3D!

Similarity 77%
Price -89% 2.36€
Rating 6.2
Release 20 Aug 2015

Trine Enchanted Edition

Three Heroes make their way through dangers untold in a fairytale world of great castles and strange machinery, featuring physics-based puzzles, beautiful sights and online co-op.

Similarity 75%
Price -86% 2.14€
Rating 9.3
Release 02 Jul 2009

Knights And Bikes

Saddle up for a bike-riding, frisbee-throwing, goose-petting, friendship-building, treasure-hunting, story-driven adventure for 1 or 2 players!

Similarity 70%
Price -50% 8.39€
Rating 8.4
Release 26 Aug 2019

Trine 4: The Nightmare Prince

The best-selling Trine series returns to the magic of 2.5D! Join three iconic heroes as they set off on a quest through fantastical fairytale landscapes to save the world from the Nightmare Prince’s shadows.

Similarity 68%
Price -93% 1.97€
Rating 8.7
Release 08 Oct 2019

Rocketbirds: Hardboiled Chicken

Annihilate an evil penguin regime in this cinematic platform adventure game offering full solo and co-op campaigns.

Similarity 68%
Price -80% 1.00€
Rating 7.7
Release 15 Oct 2012

Trine 2: Complete Story

Three Heroes make their way through dangers untold in a fairytale world, featuring physics-based puzzles, beautiful sights and online co-op.

Similarity 68%
Price -95% 1.00€
Rating 9.3
Release 06 Jun 2013

Cats Love Boxes

Fofiño and Lily are always in pursue of fun, particularly boxes! Help them to move the boxes around in this puzzle adventure! ฅ^•ﻌ•^ฅ

Similarity 67%
Price -50% 1.95€
Rating 8.9
Release 28 Feb 2024

Moving Out

Moving Out is a ridiculous physics-based moving simulator that brings new meaning to "couch co-op"! Are you ready for an exciting career in furniture? As a newly certified Furniture Arrangement & Relocation Technician, you’ll take on moving jobs all across the busy town of Packmore.

Similarity 67%
Price -83% 3.97€
Rating 7.6
Release 28 Apr 2020

Tools Up!

Tools Up! is an exciting local co-op that tests your renovation and teamwork skills. Paint walls, tear off wallpaper, and move couches against the clock!

Similarity 65%
Price -84% 3.18€
Rating 7.3
Release 03 Dec 2019

Overcooked

Overcooked is a chaotic couch co-op cooking game for one to four players. Working as a team, you and your fellow chefs must prepare, cook and serve up a variety of tasty orders before the baying customers storm out in a huff.

Similarity 65%
Price -85% 2.39€
Rating 8.8
Release 03 Aug 2016

Boti: Byteland Overclocked

Jump, Dash, Slide! Dive into a classic 3D platformer experience with Boti: Byteland Overclocked. Explore the stylized insides of a computer as a determined data robot and save Byteland from an ominous threat. Play solo or team up with a friend in seamless co-op.

Similarity 64%
Price -80% 3.90€
Rating 6.7
Release 15 Sep 2023

Shift Happens

Shift Happens is a cooperative platformer for two. You and a friend shift your mass, throw each other and puzzle your way through four stages of stylized imaginary worlds. Including the occasional backstabbing and taunting. Play with a friend on a couch, online or even special singleplayer levels.

Similarity 64%
Price -93% 1.03€
Rating 7.7
Release 22 Feb 2017

Octodad: Dadliest Catch

Octodad: Dadliest Catch is a game about destruction, deception, and fatherhood. The player controls Octodad, a dapper octopus masquerading as a human, as he goes about his life. Octodad's existence is a constant struggle, as he must master mundane tasks with his unwieldy boneless tentacles while simultaneously keeping his cephalopodan...

Similarity 64%
Price -53% 6.60€
Rating 9.1
Release 30 Jan 2014

Pikuniku

Pikuniku is an absurdly wonderful puzzle-exploration game that takes place in a strange but playful world where not everything is as happy as it seems. Help peculiar characters overcome struggles, uncover a deep state conspiracy, and start a little revolution in this delightful dystopian adventure!

Similarity 63%
Price -73% 3.46€
Rating 9.3
Release 24 Jan 2019

NARUTO SHIPPUDEN: Ultimate Ninja STORM 3 Full Burst HD

Live the 4th Great Ninja War and its overpowering boss fights or defy your friends in ultra dynamic online and offline ninja confrontations!

Similarity 62%
Price -50% 9.99€
Rating 8.7
Release 24 Oct 2013

Monster Jam Steel Titans 2

More Trucks! New Worlds! Monster Jam Steel Titans 2! Monster Jam Steel Titans 2 features more fan-favorite trucks in brand new Monster Jam worlds!

Similarity 61%
Price -79% 6.26€
Rating 7.4
Release 02 Mar 2021

Goat Simulator 3

Pilgor's baaack! Gather your herd and venture forth into Goat Simulator 3; an all-new (at least on Steam), totally realistic, sandbox farmyard experience. Invite up to three friends in local or online co-op, create carnage as a team, or compete in mini-games and then not be friends anymore.

Similarity 61%
Price -58% 12.50€
Rating 9.5
Release 15 Feb 2024

Bluey: The Videogame

Play a brand-new story set across 4 interactive adventures, explore iconic locations, play your favourite games from the TV show and also play with your friends and family in local multiplayer.

Similarity 61%
Price -35% 25.99€
Rating 6.9
Release 17 Nov 2023

Moving Out 2

Moving Out is back and wackier than ever, and now with ONLINE PLAY! Return to Packmore and use your moving skills across brand new dimensions and some old favourites. Help rebuild Smooth Moves and become an all-star F.A.R.T. (Furniture Arrangement & Relocation Technician)!

Similarity 61%
Price -65% 10.42€
Rating 7.5
Release 15 Aug 2023

MY LITTLE PONY: A Maretime Bay Adventure

Sunny wants to bring the magic of Maretime Bay Day festival back to Equestria – but some pony is out to spoil her plans! Save the celebration by putting on fashion shows, rescuing cute animals, flying with Pegasi and more, with a helping hoof from your new MY LITTLE PONY friends.

Similarity 61%
Price -85% 5.82€
Rating 7.7
Release 27 May 2022

Blanc

Blanc is an artistic cooperative adventure that follows the journey of a wolf cub and a fawn stranded in a vast, snowy wilderness. They must come together in an unlikely partnership to find their families.

Similarity 60%
Price -58% 6.29€
Rating 7.3
Release 14 Feb 2023

Struggling

Struggling is a physics-based co-op platformer with a twisted spin on teamwork. Control the arms of a squishy abomination and lead it through a deranged world.

Similarity 60%
Price -91% 1.12€
Rating 8.2
Release 27 Aug 2020

Dungeons of Sundaria

Adventure through epic dungeons facing fearsome creatures either solo or with a group of friends. Master your class, loot everything, and destroy the foul creatures of the deep! Will you become a hero of legend?

Similarity 60%
Price -24% 7.40€
Rating 7.2
Release 12 Dec 2023

Death Squared

Death Squared is a co-op puzzle game about cooperation, communication, and robot explosions. You should buy it!

Similarity 60%
Price -92% 1.00€
Rating 8.4
Release 13 Mar 2017

Most played games like 39 Days to Mars on Steam

Take a look at the top games like 39 Days to Mars that are currently attracting the largest player bases on the Steam platform, as of April 19th 2025.

1. It Takes Two

Similarity 67% Embark on the craziest journey of your life in It Takes Two. Invite a friend to join for free with Friend’s Pass and work together across a huge variety of gleefully disruptive gameplay challenges. Winner of GAME OF THE YEAR at the Game Awards 2021. It Takes Two is a co-op, multiplayer and split screen game developed by Hazelight Studios and published by Electronic Arts. Released on March 25th 2021 has received 213,158 reviews of which 202,975 were positive and 10,183 were negative resulting in an impressive rating of 9.4 out of 10. The game has hit the top spot as the #1 most played game like 39 Days to Mars, thanks to its 3,824 peak concurrent players over the last day.
9.4
202,975
10,183

3,824
players

2. Heroes® of Might & Magic® III - HD Edition

Similarity 58% The most popular Heroes® title of all time is back in HD! Fifteen years later, rediscover the epic tale of Queen Catherine Ironfist, as she re-embarks on her critically acclaimed quest to unite her ravaged homeland and re-conquer the kingdom of Erathia. Heroes® of Might & Magic® III - HD Edition is a strategy, turn-based strategy and classic game developed by DotEmu and published by Ubisoft Entertainment. Released on January 28th 2015 has received 22,492 reviews of which 17,844 were positive and 4,648 were negative resulting in a rating of 7.8 out of 10. While seeing 1,537 players online at once in the last 24 hours, this game is currently ranked #2 among games like 39 Days to Mars based on player count.
7.8
17,844
4,648

1,537
players

3. Kingdom Two Crowns

Similarity 53% Gather coins, build defenses and reclaim your fallen Kingdom. Explore and uncover secrets, unlock new technologies and protect your crown versus waves of Greed monsters that come at night. Kingdom is a solo or co-op micro-strategy and tower defense game set in an atmospheric pixel world. Kingdom Two Crowns is a tower defense, minimalist and city builder game developed by Stumpy🐙Squid, Fury Studios and Coatsink and published by Raw Fury. Released on December 11th 2018 has received 7,063 reviews of which 6,244 were positive and 819 were negative resulting in a rating of 8.6 out of 10. While seeing 1,401 players online at once in the last 24 hours, this game is currently ranked #3 among games like 39 Days to Mars based on player count.
8.6
6,244
819

1,401
players

4. Resident Evil 5

Similarity 57% This game is a port of the Games for Windows - Live version that was released in 2009. If you buy the Untold Stories Bundle here on Steam, it will be the same as upgrading to Resident Evil 5 Gold Edition. Resident Evil 5 is a co-op, action and zombies game developed and published by Capcom. Released on September 15th 2009 has received 48,198 reviews of which 41,983 were positive and 6,215 were negative resulting in a rating of 8.6 out of 10. With 804 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like 39 Days to Mars.
8.6
41,983
6,215

804
players

5. Castle Crashers®

Similarity 54% Hack, slash, and smash your way to victory in this award winning 2D arcade adventure from The Behemoth! Castle Crashers® is a 2d, online co-op and co-op game developed and published by The Behemoth. Released on September 26th 2012 has received 124,817 reviews of which 119,996 were positive and 4,821 were negative resulting in an impressive rating of 9.5 out of 10. With 803 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like 39 Days to Mars.
9.5
119,996
4,821

803
players

6. Escape Simulator

Similarity 56% First-person puzzler you can play solo or in an online co-op. Explore a set of highly interactive escape rooms. Move furniture, pick up and examine everything, smash pots and break locks! Play thousands of community-made rooms through the level editor. Escape Simulator is a puzzle, co-op and multiplayer game developed and published by Pine Studio. Released on October 19th 2021 has received 17,031 reviews of which 16,029 were positive and 1,002 were negative resulting in an impressive rating of 9.2 out of 10. With 711 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like 39 Days to Mars.
9.2
16,029
1,002

711
players

7. LEGO® Star Wars™: The Skywalker Saga

Similarity 61% Play through all nine Skywalker saga films in a game unlike any other. With over 300 playable characters, over 100 vehicles, and 23 planets to explore, a galaxy far, far away has never been more fun! *Includes classic Obi-Wan Kenobi playable character LEGO® Star Wars™: The Skywalker Saga is a lego, adventure and co-op game developed by TT Games and published by Warner Bros. Games and Warner Bros. Interactive Entertainment. Released on April 05th 2022 has received 44,647 reviews of which 40,527 were positive and 4,120 were negative resulting in a rating of 8.9 out of 10. With 636 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like 39 Days to Mars.
8.9
40,527
4,120

636
players

8. Resident Evil 6

Similarity 57% Blending action and survival horror, Resident Evil 6 promises to be the dramatic horror experience of 2013. Resident Evil 6 is a action, zombies and co-op game developed and published by Capcom. Released on March 21st 2013 has received 54,020 reviews of which 42,461 were positive and 11,559 were negative resulting in a rating of 7.8 out of 10. With 635 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like 39 Days to Mars.
7.8
42,461
11,559

635
players

9. Human Fall Flat

Similarity 67% Human Fall Flat is a hilarious, light-hearted platformer set in floating dreamscapes that can be played solo or with up to 8 players online. Free new levels keep its vibrant community rewarded. Human Fall Flat is a co-op, funny and puzzle game developed by No Brakes Games and published by Curve Games. Released on July 22nd 2016 has received 212,596 reviews of which 201,282 were positive and 11,314 were negative resulting in an impressive rating of 9.4 out of 10. With 629 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like 39 Days to Mars.
9.4
201,282
11,314

629
players

10. NARUTO SHIPPUDEN: Ultimate Ninja STORM 4

Similarity 58% The latest opus in the acclaimed STORM series is taking you on a colourful and breathtaking ride. Take advantage of the totally revamped battle system and prepare to dive into the most epic fights you’ve ever seen ! NARUTO SHIPPUDEN: Ultimate Ninja STORM 4 is a anime, fighting and action game developed by CyberConnect2 Co. Ltd. and published by Bandai Namco Entertainment. Released on February 04th 2016 has received 88,074 reviews of which 80,134 were positive and 7,940 were negative resulting in a rating of 9.0 out of 10. With 526 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like 39 Days to Mars.
9.0
80,134
7,940

526
players

Best deals on games like 39 Days to Mars on Steam

Discover fantastic savings with the best discounts on a variety of games like 39 Days to Mars available on Steam right now, updated on April 19th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like 39 Days to Mars.

1. Trine 2: Complete Story

Similarity 68% Three Heroes make their way through dangers untold in a fairytale world, featuring physics-based puzzles, beautiful sights and online co-op. Trine 2: Complete Story is a puzzle-platformer, platformer and adventure game developed and published by Frozenbyte. Released on June 06th 2013 has received 21,624 reviews of which 20,629 were positive and 995 were negative resulting in an impressive rating of 9.3 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like 39 Days to Mars.
9.3
20,629
995

-95% 20.00€ 1.00€

2. Scribblenauts Unmasked: A DC Comics Adventure

Similarity 53% In Scribblenauts Unmasked: A DC Comics Adventure, Maxwell unites with Batman™, Superman™ and the rest of The Justice League™ to restore order to the DC Comics Universe. Challenge your imagination as you battle the mightiest villains in an exciting, action-filled adventure through GOTHAM CITY™, METROPOLIS™, ATLANTIS™ and other iconic... Scribblenauts Unmasked: A DC Comics Adventure is a adventure, superhero and action game developed by 5th Cell Media and published by Warner Bros. Interactive Entertainment. Released on September 24th 2013 has received 2,306 reviews of which 1,894 were positive and 412 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in games like 39 Days to Mars.
7.9
1,894
412

-95% 20.00€ 1.00€

3. Morkredd

Similarity 57% Morkredd is a tense, physics-based co-op puzzle game for one to two players combining skill-based puzzle-solving, a challenging balance of light and shadow, and a dark world full of secrets to unlock. Morkredd is a physics, puzzle and local co-op game developed and published by Hyper Games. Released on December 10th 2020 has received 465 reviews of which 371 were positive and 94 were negative resulting in a rating of 7.5 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in games like 39 Days to Mars.
7.5
371
94

-95% 20.00€ 1.00€

4. Kitaria Fables

Similarity 55% Action Adventure fused with RPG and Farming elements. Armed with sword, bow and spellbook, fight against a rising darkness threatening the world. Plunder dungeons in search of relics and resources, tend to your farm to make provisions and potions, and take on quests solo, or with a friend! Kitaria Fables is a co-op, action rpg and farming sim game developed by Twin Hearts and published by PQube. Released on September 01st 2021 has received 1,497 reviews of which 1,079 were positive and 418 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 95% discount, this title has earned the #4 position in the best deals for games like 39 Days to Mars.
7.0
1,079
418

-95% 20.40€ 1.02€

5. Cook, Serve, Delicious! 3?!

Similarity 56% Cook, serve and manage your food truck as you dish out hundreds of different foods across war-torn America in this massive sequel to the million-selling series! Cook, Serve, Delicious! 3?! is a typing, management and difficult game developed and published by Vertigo Gaming Inc.. Released on October 14th 2020 has received 2,135 reviews of which 1,943 were positive and 192 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 94% discount, this title has earned the #5 position in the best deals for games like 39 Days to Mars.
8.7
1,943
192

-94% 16.67€ 1.00€

6. TowerFall Ascension

Similarity 53% TowerFall Ascension is the definitive version of the hit archery combat game. Inspired by classics from the golden age of couch multiplayer, it's a 4-player local party game centering around hilarious, intense versus matches. The core mechanics are simple and accessible, but hard to master and combat is fierce. TowerFall Ascension is a local multiplayer, indie and 2d fighter game developed by Maddy Makes Games Inc., Extremely OK Games and Ltd. and published by Maddy Makes Games Inc.. Released on March 11th 2014 has received 3,399 reviews of which 3,226 were positive and 173 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for games like 39 Days to Mars.
9.1
3,226
173

-93% 14.29€ 1.00€

7. Trine 4: The Nightmare Prince

Similarity 68% The best-selling Trine series returns to the magic of 2.5D! Join three iconic heroes as they set off on a quest through fantastical fairytale landscapes to save the world from the Nightmare Prince’s shadows. Trine 4: The Nightmare Prince is a puzzle-platformer, local co-op and online co-op game developed and published by Frozenbyte. Released on October 08th 2019 has received 13,203 reviews of which 11,784 were positive and 1,419 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 93% discount, this title has earned the #7 position in the best deals for games like 39 Days to Mars.
8.7
11,784
1,419

-93% 28.14€ 1.97€

8. Shift Happens

Similarity 64% Shift Happens is a cooperative platformer for two. You and a friend shift your mass, throw each other and puzzle your way through four stages of stylized imaginary worlds. Including the occasional backstabbing and taunting. Play with a friend on a couch, online or even special singleplayer levels. Shift Happens is a co-op, online co-op and local co-op game developed by Klonk Games and published by Daedalic Entertainment. Released on February 22nd 2017 has received 3,969 reviews of which 3,140 were positive and 829 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 93% discount, this title has earned the #8 position in the best deals for games like 39 Days to Mars.
7.7
3,140
829

-93% 14.71€ 1.03€

9. F.E.A.R. 3

Similarity 53% F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline. F.E.A.R. 3 is a fps, horror and co-op game developed by Day 1 Studios and published by Warner Bros. Interactive Entertainment. Released on June 21st 2011 has received 12,640 reviews of which 9,005 were positive and 3,635 were negative resulting in a rating of 7 out of 10. Currently offered at a significant 93% discount, this title has earned the #9 position in the best deals for games like 39 Days to Mars.
7
9,005
3,635

-93% 19.71€ 1.38€

10. KeyWe

Similarity 58% KeyWe is a cute, co-operative postal puzzler starring Jeff and Debra, two small kiwi birds working in a whimsical post office. They must jump, flap, peck and butt-slam their way across an interactive landscape of levers, bells and buttons to get those messages delivered on time! KeyWe is a co-op, puzzle-platformer and cute game developed by Stonewheat & Sons and published by Fireshine Games. Released on August 31st 2021 has received 1,816 reviews of which 1,645 were positive and 171 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 92% discount, this title has earned the #10 position in the best deals for games like 39 Days to Mars.
8.6
1,645
171

-92% 25.00€ 2.00€

Free games like 39 Days to Mars on Steam

Check out this fantastic list of free-to-play games like 39 Days to Mars you can enjoy on Steam right now, updated on April 19th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like 39 Days to Mars.

1. We Were Here

Similarity 53% Lost in a frozen wasteland and split up from your partner inside an abandoned castle, the only possession you have left is a walkie-talkie with a familiar voice on the other end. Can the two of you find your way out in time? We Were Here is a free to play, co-op and escape room game developed and published by Total Mayhem Games. Released on February 03rd 2017 has received 29,652 reviews of which 26,762 were positive and 2,890 were negative resulting in a rating of 8.8 out of 10. With 243 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like 39 Days to Mars.
8.8
26,762
2,890

243
players

2. Pixel Puzzles Ultimate Jigsaw Puzzles

Similarity 67% The Number 1 Jigsaw Puzzle Game. Pixel Puzzles Ultimate Jigsaw Puzzles is a puzzle, board game and tabletop game developed and published by Pixel Puzzles. Released on August 29th 2022 has received 2,664 reviews of which 2,007 were positive and 657 were negative resulting in a rating of 7.3 out of 10. Thanks to its free to play tag and a daily player base of 108, this game has secured the #2 spot in the ranking of free games like 39 Days to Mars.
7.3
2,007
657

108
players

3. Cube Escape: Paradox

Similarity 58% The tenth Cube Escape follows the story of detective Dale Vandermeer who finds himself trapped in two different universes and needs to escape. Cube Escape: Paradox will be released together with the accompanying Paradox: A Rusty Lake Film. Cube Escape: Paradox is a puzzle, free to play and psychological horror game developed and published by Rusty Lake. Released on September 20th 2018 has received 10,295 reviews of which 10,013 were positive and 282 were negative resulting in an impressive rating of 9.4 out of 10. The game currently holds the #3 spot among the most played free games like 39 Days to Mars.
9.4
10,013
282

82
players

4. Escape Memoirs: Mini Stories

Similarity 58% "Escape Memoirs: Mini Stories" is a series of co-operative escape-room style puzzle scenarios. Each one is sure to test your wits as you try to overcome the challenges that stand in the way of your escape. Escape Memoirs: Mini Stories is a free to play, multiplayer and escape room game developed and published by 0 Deer Soft. Released on September 30th 2022 has received 5,302 reviews of which 4,497 were positive and 805 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #4 spot among the most played free games like 39 Days to Mars.
8.2
4,497
805

81
players

5. Escape Memoirs: Questionable Side Stories

Similarity 59% 'Escape Memoirs: Questionable Side Stories' is a humorous co-operative escape room game where you are a henchman who has to make his way through variety of puzzles to make it to a job interview on time. Can you solve all of the puzzles that stand in the way of your employment? Escape Memoirs: Questionable Side Stories is a escape room, multiplayer and co-op game developed and published by 0 Deer Soft. Released on August 07th 2023 has received 1,445 reviews of which 1,370 were positive and 75 were negative resulting in a rating of 9.0 out of 10. The game currently holds the #5 spot among the most played free games like 39 Days to Mars.
9.0
1,370
75

37
players

6. PICO PARK:Classic Edition

Similarity 60% PICO PARK:Classic Edition is a cooperative local multiplay action puzzle game for 2-10 players. PICO PARK:Classic Edition is a multiplayer, local co-op and free to play game developed and published by TECOPARK. Released on April 27th 2016 has received 1,503 reviews of which 1,086 were positive and 417 were negative resulting in a rating of 7.0 out of 10. The game currently holds the #6 spot among the most played free games like 39 Days to Mars.
7.0
1,086
417

26
players

7. The Expendabros

Similarity 59% The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe. The Expendabros is a free to play, action and pixel graphics game developed by Free Lives and published by Devolver Digital. Released on August 05th 2014 has received 18,168 reviews of which 17,657 were positive and 511 were negative resulting in an impressive rating of 9.5 out of 10. The game currently holds the #7 spot among the most played free games like 39 Days to Mars.
9.5
17,657
511

15
players

8. Relic Hunters Zero: Remix

Similarity 55% Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander! Relic Hunters Zero: Remix is a looter shooter, twin stick shooter and action game developed by Rogue Snail and published by Akupara Games. Released on August 18th 2015 has received 6,771 reviews of which 6,316 were positive and 455 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #8 spot among the most played free games like 39 Days to Mars.
9.0
6,316
455

5
players

9. The Backrooms: Unbounded

Similarity 54% The Backrooms: Unbounded is a Free Simple Linear single player first person body camera horror game based on the backrooms. You take the role of a police officer who noclips out of reality while on duty. Will you make it out alive? The Backrooms: Unbounded is a horror, psychological horror and singleplayer game developed and published by BluSkie. Released on December 25th 2023 has received 566 reviews of which 428 were positive and 138 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #9 spot among the most played free games like 39 Days to Mars.
7.2
428
138

1
players

10. Scrap Garden - The Day Before

Similarity 56% A new chapter of charming 3D platformer about the little rusty robot C4N who unwittingly finds himself in the midst of momentous events in Robo Land. In order to solve the new riddle, Canny will once again need to run and jump a lot, solve puzzles, and fight against enemies who are much bigger and stronger than he is. Scrap Garden - The Day Before is a adventure, action and free to play game developed by Egidijus Bachur and Alexey Davydov and published by Flazm. Released on October 07th 2016 has received 987 reviews of which 748 were positive and 239 were negative resulting in a rating of 7.3 out of 10. The game currently holds the #10 spot among the most played free games like 39 Days to Mars.
7.3
748
239