Games like Theseus Protocol on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Theseus Protocol are available at the bottom of the page.
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Castle Morihisa
"Castle Morihisa" is a roguelike featuring strategic deckbuilder. You need to build up your deck through constant battles, acquire powerful talents, and wield the power of the Fallen Heroes to unveil the truth behind the rebellion in Castle Morihisa.
Across the Obelisk
Set forth in a co-op roguelite deckbuilder where every choice matters! Craft decks of breathtaking power. Journey alone or with up to three friends. Plot your party’s path to glory and face powerful enemies in deep tactical combat on your quest to save the kingdom of Senenthia in Across the Obelisk!
Roguebook
Embrace the challenge of a roguelike deckbuilder with unique mechanics from the developers of Faeria and Richard Garfield, creator of Magic: The Gathering™. Build a team of two heroes, unleash powerful combos and defeat the legends of the Roguebook!
Pirates Outlaws
Pirates Outlaws is a roguelike card game in which you navigate dangerous seas and challenge their masters. Your expedition will be full of ambushes and will not be easy. Build your deck and combos to become a reputed pirate.
Deck of Ashes
Deck of Ashes is an adventure game with tactical card combat. One character at a time, lead the cast of antiheroes on a quest for redemption. Explore the cursed fantasy world and hunt down powerful cards. Forge a unique Battle Deck, and crush your foes! Can you rid the world of the Ash Curse?
Monster Slayers
Monster Slayers is a rogue-like deck-building RPG adventure. Create a hero and choose your path through the perilous Northern Valley as you battle to become a true Monster Slayer.
Cat God Ranch
Lead hundreds of "wise" little animals to pay tribute to the Cat God!! 7 animal families, 100+ animals, 10+ Cat Gods, 100+ items, and various animal combinations waiting for you to explore!
Alina of the Arena
A roguelike deckbuilding tactics game that combines elements from 'Slay the Spire' and 'Into the Breach'. Play as a gladiator to survive. With roguelike deckbuilding and hex-based tactics, no longer bound by simple attack and defense. Make use of dodges and knockbacks to stay alive!
Yao-Guai Hunter
Yao-Guai Hunter is a Wuxia roguelike deck-building game. In a world where Yao-Guai roam free, player battles with various evil beings, collecting cards and learn inner skills. Encountering various adventures in the martial world.
Three Kingdoms: The Blood Moon
Three Kingdoms: The Blood Moon is a turn-based Roguelike card game where you assume the role of a Shu general. Explore dungeons, gather relics, and amass a collection of cards. In each round, you can assemble a unique combination of cards and treasures to defeat your enemies and rewrite history!
Zet Zillions
Zet Zillions is a single-player roguelike deckbuilder where you use your cards to make freakish combinations and explode entire planets. BIG-BADDA-BOOM!
Cobalt Core
A sci-fi roguelike deckbuilder with a deep new single-axis spin on tactics games! Dodge missiles, line up your cannons, and blast 'em out of the sky... Then get to the bottom of these time loops, before it's too late!
Knock on the Coffin Lid
Investigate your own death, find ways to break free from a time loop, choose a hero who will ascend to the throne and rule the Northern gate! The fates of whole nations of the land of Midian depend on your choices.
Monster Train
Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time.
Card-en-Ciel
Card-en-Ciel is a roguelite card-battling RPG featuring over 300 different cards and 50 unique vocal songs! Play as Neon, the "Gaming Chair Detective" famous for solving net-crimes, as he encounters a strange new case when he dives into an in-development game world.
Nitro Kid
Synthwave roguelike deckbuilder set in the neon 80's. Pick your agent. Build your deck. Hit card combos and fight through the floors of INFINITY tower. Featuring 30+ fresh Synthwave tracks by LudoWic, Tonebox and Jules Reves.
Deep Sky Derelicts
Deep Sky Derelicts is an original combination of turn-based strategy and RPG, enriched with tactical card combat and popular roguelike elements. Explore derelict alien ships, fight, loot and upgrade your gear, all in distinctive retro-futuristic comic book aesthetic style.
Deathless. Tales of Old Rus
In Deathless, elements of a collectible card game, roguelike, and turn-based strategy combine seamlessly. Build a unique deck of cards, discover unusual relics, and defeat legendary bosses. No two journeys will ever be the same with endless Path. Crush the Evil and save the world!
Circadian Dice
Circadian Dice is a game inspired by single-player deck-building games, but instead of upgrading a deck, you build up a set of dice! Use 10 different heroes and 60 game-warping relics to take on 13 hand-crafted scenarios, in runs that take 10-30 minutes. Lots of secrets and unlocks to discover!
Death Roads: Tournament
Combine deadly racing, deckbuilding, and roguelite style to get car battles unlike anything before! Choose a driver, car, weapons, and sponsors to overcome tactical encounters. Adapt to an ever-changing race to come out on top and earn entry into the last safe haven on the Divided States of America.
Pawnbarian
Pawnbarian is a quick-playing, turn-based puzzle roguelike. Play cards to move your hero like a chess piece, and conquer challenging dungeons full of cunning monsters!
Beneath Oresa
Beneath Oresa, a fighting roguelike deckbuilder, takes you deep within the city to confront your foes. As a strategist, choose your cards, upgrades, and artifacts wisely, but as a fighter, turn their positioning to your advantage.
Nadir: A Grimdark Deckbuilder
Nadir is a roguelike deck-builder with a twist: the cost to play a card is an enemy reaction you can predict. Craft your own cards to slay powerful demons. Gather resources, expand your city, grow in power and conquer the underworld.Most played games like Theseus Protocol on Steam
Take a look at the top games like Theseus Protocol that are currently attracting the largest player bases on the Steam platform, as of April 19th 2025.
1. Balatro
Similarity 51% The poker roguelike. Balatro is a hypnotically satisfying deckbuilder where you play illegal poker hands, discover game-changing jokers, and trigger adrenaline-pumping, outrageous combos. Balatro is a card game, roguelike deckbuilder and rogue-like game developed by LocalThunk and published by Playstack. Released on February 20th 2024 has received 143,281 reviews of which 140,481 were positive and 2,800 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like Theseus Protocol, thanks to its 19,640 peak concurrent players over the last day.
9.7
140,481
2,800
19,640
players
2. Slay the Spire
Similarity 51% We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire! Slay the Spire is a roguelike deckbuilder, card game and card battler game developed and published by Mega Crit. Released on January 23rd 2019 has received 179,119 reviews of which 175,201 were positive and 3,918 were negative resulting in an impressive rating of 9.7 out of 10. While seeing 9,505 players online at once in the last 24 hours, this game is currently ranked #2 among games like Theseus Protocol based on player count.
9.7
175,201
3,918
9,505
players
3. Library Of Ruina
Similarity 53% "May you find your book in this place." Combat between the guests and the librarians breaks out as if it were on a stage. Defeated guests turn into books, and the Library grows onward. And eventually, get your hands on… The one singular, perfect book. Library Of Ruina is a story rich, card game and difficult game developed and published by ProjectMoon. Released on August 10th 2021 has received 33,580 reviews of which 31,585 were positive and 1,995 were negative resulting in an impressive rating of 9.2 out of 10. While seeing 946 players online at once in the last 24 hours, this game is currently ranked #3 among games like Theseus Protocol based on player count.
9.2
31,585
1,995
946
players
4. Across the Obelisk
Similarity 59% Set forth in a co-op roguelite deckbuilder where every choice matters! Craft decks of breathtaking power. Journey alone or with up to three friends. Plot your party’s path to glory and face powerful enemies in deep tactical combat on your quest to save the kingdom of Senenthia in Across the Obelisk! Across the Obelisk is a rogue-like, strategy and 2d game developed by Dreamsite Games and published by Paradox Interactive and Paradox Arc. Released on August 16th 2022 has received 11,725 reviews of which 9,623 were positive and 2,102 were negative resulting in a rating of 8.0 out of 10. With 631 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Theseus Protocol.
8.0
9,623
2,102
631
players
5. Monster Train
Similarity 57% Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time. Monster Train is a card battler, rogue-lite and card game game developed by Shiny Shoe and published by Good Shepherd Entertainment. Released on May 21st 2020 has received 21,609 reviews of which 20,751 were positive and 858 were negative resulting in an impressive rating of 9.4 out of 10. With 622 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Theseus Protocol.
9.4
20,751
858
622
players
6. LONESTAR
Similarity 59% LONESTAR is a strategic Roguelike spaceship deckbuilder. As a bounty hunter, you will capture criminals scattered across the universe. Win the shockwave battle to gain rewards and vacations. Find treasures, customize spaceships, unlock talents, defeat the felons and be a legend! LONESTAR is a rogue-like, strategy and turn-based tactics game developed by Math Tide and published by Thermite Games. Released on April 03rd 2025 has received 1,738 reviews of which 1,597 were positive and 141 were negative resulting in a rating of 8.8 out of 10. With 490 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Theseus Protocol.
8.8
1,597
141
490
players
7. Die in the Dungeon
Similarity 61% Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but dice! Deal with enemies by combining powerful dice on your board, boost their effects with magical relics, and risk it all hoping for a good roll on unexpected encounters. Die in the Dungeon is a early access, turn-based strategy and choices matter game developed by ATICO and published by HypeTrain Digital and INSTINCT3. Released on February 21st 2025 has received 1,655 reviews of which 1,505 were positive and 150 were negative resulting in a rating of 8.7 out of 10. With 253 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Theseus Protocol.
8.7
1,505
150
253
players
8. Yao-Guai Hunter
Similarity 58% Yao-Guai Hunter is a Wuxia roguelike deck-building game. In a world where Yao-Guai roam free, player battles with various evil beings, collecting cards and learn inner skills. Encountering various adventures in the martial world. Yao-Guai Hunter is a card game, roguelike deckbuilder and replay value game developed by MòGames and published by MòGames and MyACG Studio. Released on April 17th 2025 has received 1,505 reviews of which 1,288 were positive and 217 were negative resulting in a rating of 8.2 out of 10. With 187 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Theseus Protocol.
8.2
1,288
217
187
players
9. Knock on the Coffin Lid
Similarity 57% Investigate your own death, find ways to break free from a time loop, choose a hero who will ascend to the throne and rule the Northern gate! The fates of whole nations of the land of Midian depend on your choices. Knock on the Coffin Lid is a fantasy, dark fantasy and zombies game developed and published by RedBoon. Released on August 08th 2024 has received 2,476 reviews of which 2,116 were positive and 360 were negative resulting in a rating of 8.2 out of 10. With 179 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Theseus Protocol.
8.2
2,116
360
179
players
10. Dungeons & Degenerate Gamblers
Similarity 51% Battle your way through a seedy tavern filled with gambling addicted townspeople in this Blackjack Roguelike Adventure. From aces and face cards to tarot cards, business cards and more, create your unique deck to beat the house. Dungeons & Degenerate Gamblers is a roguelike deckbuilder, strategy and rogue-like game developed by Purple Moss Collectors and published by Yogscast Games. Released on August 08th 2024 has received 2,516 reviews of which 2,032 were positive and 484 were negative resulting in a rating of 7.8 out of 10. With 151 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Theseus Protocol.
7.8
2,032
484
151
players
Best deals on games like Theseus Protocol on Steam
Discover fantastic savings with the best discounts on a variety of games like Theseus Protocol 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 Theseus Protocol.
1. Zoeti
Similarity 66% Zoeti is a turn-based roguelite that features a deck of playing cards used to create card combos and activate skills in the heat of battle. Bolster your arsenal of skills through battles, discoverable upgrades, or aid from the locals which enhance your plays to overcome the evil plaguing your land. Zoeti is a roguelike deckbuilder, card game and card battler game developed by Dusklight CO. and LTD. and published by Akupara Games. Released on April 20th 2023 has received 387 reviews of which 252 were positive and 135 were negative resulting in a rating of 6.3 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Theseus Protocol.
6.3
252
135
-95%
20.00€
1.00€
2. Griftlands
Similarity 69% Griftlands is a deck-building roguelite where you negotiate, fight, steal or otherwise persuade others to get your way. Every decision is important, be it the jobs you take, the friends you make, or the cards you collect. Griftlands is a card battler, rogue-lite and deckbuilding game developed and published by Klei Entertainment. Released on June 01st 2021 has received 13,895 reviews of which 13,040 were positive and 855 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its incredible 94% discount, this game is now the #2 best deal in games like Theseus Protocol.
9.1
13,040
855
-94%
17.67€
1.06€
3. Astrea: Six-Sided Oracles
Similarity 59% Astrea is a DICE-deck-building roguelike that flips the script on deckbuilders by using dice instead of cards and a unique dual “damage” system: Purification vs Corruption. Build a dice pool strong enough to purify Astrea's out-of-control corruption and save the Star System. Astrea: Six-Sided Oracles is a roguelike deckbuilder, dice and card battler game developed by Little Leo Games and published by Akupara Games. Released on September 21st 2023 has received 4,025 reviews of which 3,696 were positive and 329 were negative resulting in a rating of 8.8 out of 10. Thanks to its incredible 94% discount, this game is now the #3 best deal in games like Theseus Protocol.
8.8
3,696
329
-94%
26.17€
1.57€
4. Deep Sky Derelicts
Similarity 56% Deep Sky Derelicts is an original combination of turn-based strategy and RPG, enriched with tactical card combat and popular roguelike elements. Explore derelict alien ships, fight, loot and upgrade your gear, all in distinctive retro-futuristic comic book aesthetic style. Deep Sky Derelicts is a roguelike deckbuilder, rpg and strategy game developed by Snowhound Games and published by Fulqrum Publishing. Released on September 26th 2018 has received 2,706 reviews of which 2,020 were positive and 686 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 91% discount, this title has earned the #4 position in the best deals for games like Theseus Protocol.
7.2
2,020
686
-91%
19.78€
1.78€
5. Hadean Tactics
Similarity 60% Hadean Tactics is a roguelike deckbuilding game fused with autobattler elements to create a unique strategy experience. Use your cards to influence the actions of your units and help your Hero defeat the Six Wings of Hell! Hadean Tactics is a roguelike deckbuilder, auto battler and card battler game developed and published by Emberfish Games. Released on August 24th 2023 has received 1,740 reviews of which 1,564 were positive and 176 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 81% discount, this title has earned the #5 position in the best deals for games like Theseus Protocol.
8.6
1,564
176
-81%
19.05€
3.62€
6. Across the Obelisk
Similarity 59% Set forth in a co-op roguelite deckbuilder where every choice matters! Craft decks of breathtaking power. Journey alone or with up to three friends. Plot your party’s path to glory and face powerful enemies in deep tactical combat on your quest to save the kingdom of Senenthia in Across the Obelisk! Across the Obelisk is a rogue-like, strategy and 2d game developed by Dreamsite Games and published by Paradox Interactive and Paradox Arc. Released on August 16th 2022 has received 11,725 reviews of which 9,623 were positive and 2,102 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 80% discount, this title has earned the #6 position in the best deals for games like Theseus Protocol.
8.0
9,623
2,102
-80%
20.20€
4.04€
7. Deck of Ashes
Similarity 59% Deck of Ashes is an adventure game with tactical card combat. One character at a time, lead the cast of antiheroes on a quest for redemption. Explore the cursed fantasy world and hunt down powerful cards. Forge a unique Battle Deck, and crush your foes! Can you rid the world of the Ash Curse? Deck of Ashes is a card battler, rpg and indie game developed by AYGames and published by ESDigital Games. Released on June 09th 2020 has received 1,042 reviews of which 754 were positive and 288 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 80% discount, this title has earned the #7 position in the best deals for games like Theseus Protocol.
7.0
754
288
-80%
19.99€
3.99€
8. Trials of Fire
Similarity 70% A Tactical, Deck-Building Roguelite. Choose 3 Heroes and adventure into a post-Cataclysmic wasteland. Engage enemies in a unique meld of card-play and tactical, positional combat. Level up and scavenge what you can to customise your decks and build a party to take on any challenge! Trials of Fire is a card battler, turn-based tactics and tactical rpg game developed and published by Whatboy Games. Released on April 09th 2021 has received 3,148 reviews of which 2,719 were positive and 429 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 76% discount, this title has earned the #8 position in the best deals for games like Theseus Protocol.
8.3
2,719
429
-76%
17.08€
4.10€
9. Super Bullet Break
Similarity 65% Save the world of online multiplayer games from a rogue AI in this deck-building strategy roguelite! Collect more than 160 cute and colourful Bullets as you move through maps based on iconic game genres and defeat enemies in challenging turn-based combat. Super Bullet Break is a anime, turn-based tactics and card battler game developed by BeXide Inc. and published by PQube. Released on August 12th 2022 has received 387 reviews of which 315 were positive and 72 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 75% discount, this title has earned the #9 position in the best deals for games like Theseus Protocol.
7.6
315
72
-75%
20.24€
5.06€
10. Roguebook
Similarity 59% Embrace the challenge of a roguelike deckbuilder with unique mechanics from the developers of Faeria and Richard Garfield, creator of Magic: The Gathering™. Build a team of two heroes, unleash powerful combos and defeat the legends of the Roguebook! Roguebook is a rpg, indie and card game game developed by Abrakam Entertainment SA and published by Nacon. Released on June 17th 2021 has received 3,804 reviews of which 3,186 were positive and 618 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 72% discount, this title has earned the #10 position in the best deals for games like Theseus Protocol.
8.1
3,186
618
-72%
25.00€
7.00€
Free games like Theseus Protocol on Steam
Check out this fantastic list of free-to-play games like Theseus Protocol 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 Theseus Protocol.
1. 月圆之夜 (Night of Full Moon)
Similarity 52% "Night of the Full Moon" is a stand-alone roguelike card game. Take adventure into Black Forest. Random event, random plot leads to different endings. 月圆之夜 (Night of Full Moon) is a free to play, card game and strategy game developed and published by Giant Games. Released on July 25th 2019 has received 10,344 reviews of which 8,595 were positive and 1,749 were negative resulting in a rating of 8.1 out of 10. With 129 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Theseus Protocol.
8.1
8,595
1,749
129
players
2. Die in the Dungeon: Origins
Similarity 51% Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon! Die in the Dungeon: Origins is a roguelike deckbuilder, card game and deckbuilding game developed by ATICO and published by HypeTrain Digital. Released on December 01st 2023 has received 3,398 reviews of which 3,277 were positive and 121 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #2 spot among the most played free games like Theseus Protocol.
9.2
3,277
121
15
players
3. 攻城与召唤 Siege and Summons 【5分钟一局 策略竞技 】
Similarity 52% Siege and Summon is an online turn-based competitive card game set in the Three Kingdoms era. Players can use soldier cards and skill cards to build a deck of cards to challenge powerful players in the world of the tk. NPCs can also fight against other players and form teams to challenge dungeons. 攻城与召唤 Siege and Summons 【5分钟一局 策略竞技 】 is a multiplayer, historical and alternate history game developed and published by Siege and Summons. Released on May 17th 2024 has received 1,072 reviews of which 1,024 were positive and 48 were negative resulting in an impressive rating of 9 out of 10. The game currently holds the #3 spot among the most played free games like Theseus Protocol.
9
1,024
48
1
players