Games like Idle Monster TD on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Idle Monster TD are available at the bottom of the page.
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Idle Hero TD - Tower Defense
Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing!
Idle Monster TD: Evolved
Evolve epic monsters and crush puny humans in this endless idle tower defense game! Unlock, upgrade, and evolve over 150 unique monsters and pets, ranging from cute and colorful flower creatures to epic fire breathing dragons, to assemble the ultimate team against the endless waves of enemies.
United Penguin Kingdom
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
(the) Gnorp Apologue
(the) Gnorp Apologue is the journey of the gnorps as you guide them towards their goal of delightfully excessive wealth accumulation.
Magic Archery
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
Nomad Idle
Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival.
Doom Sweeper
DOOM SWEEPER is a 2D pixel-style game. Clean up the approaching zombie climax, and exchange it for cash, embarking on a journey to become an arms dealer in the apocalypse. Complete the game, unlock more items in the shop, and achieve various achievements to obtain different CG!
Realm Grinder
Grow your realm, build alliances, and explore one of the deepest idle RPGs ever!
Gnomes Garden
Dry summer withered the king’s beloved garden and the surrounding gardens of the kingdom alike. The ruler has fallen ill and the kingdom is in danger. Help the princess save the gardens and make the king better again.
Kingdom: Classic
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.
Dungeon Warfare
Dungeon Warfare is a challenging tower defense strategy game where you become a dungeon lord to defend your dungeons with deadliest of traps and insidious contraptions against greedy adventurers and wanna-be heroes.
Idle Colony
A condensed incremental experience, where you build a colony to collect and merge bigger and bigger fruits. Combine game-changing technologies and special upgrades to find the best synergies and take your cash flow to another dimension.
Rusty's Retirement
A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things.
Widget Inc.
A hybrid factory builder / incremental clicker game. Starting from humble beginnings, master the many crafting processes to build up resources and expand your factory. Then, using your newly automated production, unlock new technology and grow ever closer to your goal of spreading to the stars.
Border Pioneer
As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see!
Grow Defense
Upgrade your Castle and Unlock new tiers of Skills and Weapons to Defend vs Monsters and Bosses across VARIOUS ZONES! Find Rare ITEMS dropped from monsters and bosses and upgrade them to their full potential! Defeat RAID Mega-Bosses to find LEGENDARY items!
Magic Research 2
Welcome to Magic Research 2, an incremental RPG from the creator of Magic Research. Learn countless spells, face powerful foes, and command a team of Wizards who can cast spells for you as you journey to find or create the Philosopher's Stone.
Mob Factory
Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.
Cookie Clicker
An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.
Grim Clicker
Grim Clicker is an IDLE/RPG clicker where you will find your own strategy to explore the lost worlds. Inspired by games such as Diablo, Grim Dawn, Dark Souls, etc., the game features a complex character development, many unique items, active and passive playstyle.
Monster Tiles TD: Tower Wars
Free Tower Defense game with unique roguelike elements. Custom base building mechanics allow you to create your own base and maze with tiles earned after each wave. Unleash a variety of monsters, each with its own evolution path and unique skills, and evolve them into legendary creatures.
Reprisal Universe
Reprisal Universe places you in charge of the very elements themselves. Raise and lower land to expand your tribes, harness the power of fire and water. Explore the hidden mysteries of the Universe and gather your people together once again.
Scarlet Tower
Hunt during the day, be hunted during the NIGHT! Scarlet Tower is a gothic horror casual game with roguelike and RPG elements, like talent trees, classes, familiars and more!Most played games like Idle Monster TD on Steam
Take a look at the top games like Idle Monster TD that are currently attracting the largest player bases on the Steam platform, as of April 15th 2025.
1. Cookie Clicker
Similarity 56% An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam. Cookie Clicker is a clicker, idler and casual game developed by Orteil and DashNet and published by Playsaurus. Released on September 01st 2021 has received 78,130 reviews of which 75,535 were positive and 2,595 were negative resulting in an impressive rating of 9.5 out of 10. The game has hit the top spot as the #1 most played game like Idle Monster TD, thanks to its 13,767 peak concurrent players over the last day.
9.5
75,535
2,595
13,767
players
2. Nomad Idle
Similarity 60% Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival. Nomad Idle is a idler, clicker and class-based game developed and published by The Fox Knocks. Released on April 04th 2025 has received 481 reviews of which 304 were positive and 177 were negative resulting in a rating of 6.1 out of 10. While seeing 3,582 players online at once in the last 24 hours, this game is currently ranked #2 among games like Idle Monster TD based on player count.
6.1
304
177
3,582
players
3. Rusty's Retirement
Similarity 58% A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things. Rusty's Retirement is a farming sim, idler and automation game developed and published by Mister Morris Games. Released on April 26th 2024 has received 12,306 reviews of which 11,943 were positive and 363 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 1,659 players online at once in the last 24 hours, this game is currently ranked #3 among games like Idle Monster TD based on player count.
9.4
11,943
363
1,659
players
4. Idling to Rule the Gods
Similarity 53% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,885 reviews of which 1,612 were positive and 273 were negative resulting in a rating of 8.2 out of 10. With 1,352 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Idle Monster TD.
8.2
1,612
273
1,352
players
5. Mr.Mine
Similarity 55% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and strategy game developed and published by Playsaurus. Released on September 30th 2020 has received 16,877 reviews of which 15,520 were positive and 1,357 were negative resulting in a rating of 9.0 out of 10. With 1,260 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Idle Monster TD.
9.0
15,520
1,357
1,260
players
6. Realm Grinder
Similarity 60% Grow your realm, build alliances, and explore one of the deepest idle RPGs ever! Realm Grinder is a free to play, clicker and pixel graphics game developed by Divine Games and published by Kongregate. Released on June 15th 2017 has received 7,027 reviews of which 6,120 were positive and 907 were negative resulting in a rating of 8.5 out of 10. With 923 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Idle Monster TD.
8.5
6,120
907
923
players
7. Idle Hero TD - Tower Defense
Similarity 84% Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 589 reviews of which 486 were positive and 103 were negative resulting in a rating of 7.8 out of 10. With 923 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Idle Monster TD.
7.8
486
103
923
players
8. Idle Cave Miner
Similarity 53% Idle Cave Miner is an idle game about crafting items, mining gems, and building your team of miners. Prestige, craft, and travel to other mines to increase your strength to dig deeper, and find what lurks below. Idle Cave Miner is a idler, clicker and mining game developed and published by Cold Hours. Released on December 07th 2023 has received 664 reviews of which 538 were positive and 126 were negative resulting in a rating of 7.7 out of 10. With 768 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Idle Monster TD.
7.7
538
126
768
players
9. Idle Clans
Similarity 52% Idle Clans is a multiplayer idle game that combines the classic MMORPG experience with simplified gameplay and less time commitment. Features include a player-driven economy, PvE, trading, quests, crafting and opportunities to play, socialize and collaborate with other players. Idle Clans is a massively multiplayer, idler and clicker game developed and published by Isam Games. Released on April 07th 2023 has received 1,108 reviews of which 807 were positive and 301 were negative resulting in a rating of 7.0 out of 10. With 642 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Idle Monster TD.
7.0
807
301
642
players
10. Dragon Cliff
Similarity 54% Dragon Cliff is a Semi-Idle RPG game with deep and complex itemization/skill systems to support endless character builds. Players are to collect adventurers, kill monsters, advance talent trees, enchant/reforge equipment, discover scrolls and finally assemble the most powerful adventure team! Dragon Cliff is a rpg, strategy and idler game developed and published by Meta Interaction. Released on May 11th 2018 has received 7,772 reviews of which 6,949 were positive and 823 were negative resulting in a rating of 8.7 out of 10. With 493 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Idle Monster TD.
8.7
6,949
823
493
players
Best deals on games like Idle Monster TD on Steam
Discover fantastic savings with the best discounts on a variety of games like Idle Monster TD available on Steam right now, updated on April 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Idle Monster TD.
1. Wall World
Similarity 50% Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World? Wall World is a rogue-lite, mining and pixel graphics game developed and published by Alawar. Released on April 05th 2023 has received 9,598 reviews of which 8,770 were positive and 828 were negative resulting in a rating of 8.9 out of 10. Featuring a massive 85% discount, this game currently holds the #1 spot in the best deals for games like Idle Monster TD.
8.9
8,770
828
-85%
6.67€
1.00€
2. Gnomes Garden
Similarity 59% Dry summer withered the king’s beloved garden and the surrounding gardens of the kingdom alike. The ruler has fallen ill and the kingdom is in danger. Help the princess save the gardens and make the king better again. Gnomes Garden is a casual, strategy and time management game developed by Workroom7 and Creobit and published by 8floor. Released on December 18th 2015 has received 321 reviews of which 283 were positive and 38 were negative resulting in a rating of 8.2 out of 10. Thanks to its incredible 85% discount, this game is now the #2 best deal in games like Idle Monster TD.
8.2
283
38
-85%
8.79€
1.31€
3. Border Pioneer
Similarity 58% As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see! Border Pioneer is a tower defense, city builder and strategy game developed by Yahzj Games and published by Yogscast Games and Gamersky Games. Released on February 06th 2025 has received 1,048 reviews of which 918 were positive and 130 were negative resulting in a rating of 8.3 out of 10. Thanks to its 49% discount, this game is now the #3 best deal in games like Idle Monster TD.
8.3
918
130
-49%
14.71€
7.50€
4. Yolk Heroes: A Long Tamago
Similarity 55% Someone has to protect this realm... is it you? Become a guardian spirit and raise your very own Hero to stand against the Dark Lord. Yolk Heroes: A Long Tamago is a time management, idler and pve game developed by 14 Hours Productions and published by 14 Hours Productions and Astrolabe Games. Released on May 20th 2024 has received 691 reviews of which 646 were positive and 45 were negative resulting in a rating of 8.7 out of 10. Currently offered at a 30% discount, this title has earned the #4 position in the best deals for games like Idle Monster TD.
8.7
646
45
-30%
7.79€
5.45€
5. Castle Of Alchemists
Similarity 51% Defend your castle in this fast-paced tower defense/action hybrid game with stunning pixel art graphics! Play as alchemically enhanced warrior Bellator, set traps, build towers, craft powerful weapons, and defend your home! The fate of the castle lies in your hands! Castle Of Alchemists is a tower defense, action rpg and pixel graphics game developed by Team Machiavelli and published by Team Machiavelli and IndieArk. Released on April 10th 2025 has received 563 reviews of which 498 were positive and 65 were negative resulting in a rating of 8.3 out of 10. Currently offered at a 20% discount, this title has earned the #5 position in the best deals for games like Idle Monster TD.
8.3
498
65
-20%
14.79€
11.83€
6. Nomad Idle
Similarity 60% Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival. Nomad Idle is a idler, clicker and class-based game developed and published by The Fox Knocks. Released on April 04th 2025 has received 481 reviews of which 304 were positive and 177 were negative resulting in a rating of 6.1 out of 10. Currently offered at a 10% discount, this title has earned the #6 position in the best deals for games like Idle Monster TD.
6.1
304
177
-10%
9.75€
8.77€
7. Rusty's Retirement
Similarity 58% A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things. Rusty's Retirement is a farming sim, idler and automation game developed and published by Mister Morris Games. Released on April 26th 2024 has received 12,306 reviews of which 11,943 were positive and 363 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a 6% discount, this title has earned the #7 position in the best deals for games like Idle Monster TD.
9.4
11,943
363
-6%
7.02€
6.60€
8. Kingdom Rush Frontiers - Tower Defense
Similarity 51% Command your troops through an epic (mis)adventure as you defend exotic lands from dragons, man-eating plants, and ghastly denizens of the underworld -all with flashy new towers, levels, heroes, and more goodies to help you crush your foes in this Fantasy Action Tower Defense game! Kingdom Rush Frontiers - Tower Defense is a tower defense, strategy and 2d game developed and published by Ironhide Game Studio. Released on July 25th 2016 has received 9,258 reviews of which 8,962 were positive and 296 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a 6% discount, this title has earned the #8 position in the best deals for games like Idle Monster TD.
9.4
8,962
296
-6%
9.97€
9.37€
Free games like Idle Monster TD on Steam
Check out this fantastic list of free-to-play games like Idle Monster TD you can enjoy on Steam right now, updated on April 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Idle Monster TD.
1. Idling to Rule the Gods
Similarity 53% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,885 reviews of which 1,612 were positive and 273 were negative resulting in a rating of 8.2 out of 10. With 1,352 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Idle Monster TD.
8.2
1,612
273
1,352
players
2. Mr.Mine
Similarity 55% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and strategy game developed and published by Playsaurus. Released on September 30th 2020 has received 16,877 reviews of which 15,520 were positive and 1,357 were negative resulting in a rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 1,260, this game has secured the #2 spot in the ranking of free games like Idle Monster TD.
9.0
15,520
1,357
1,260
players
3. Realm Grinder
Similarity 60% Grow your realm, build alliances, and explore one of the deepest idle RPGs ever! Realm Grinder is a free to play, clicker and pixel graphics game developed by Divine Games and published by Kongregate. Released on June 15th 2017 has received 7,027 reviews of which 6,120 were positive and 907 were negative resulting in a rating of 8.5 out of 10. Thanks to its free to play tag and a daily player base of 923, this game has secured the #3 spot in the ranking of free games like Idle Monster TD.
8.5
6,120
907
923
players
4. Idle Hero TD - Tower Defense
Similarity 84% Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 589 reviews of which 486 were positive and 103 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 923 players due to its free access, this strategy game has achieved the #4 position in the best free games like Idle Monster TD.
7.8
486
103
923
players
5. Idle Cave Miner
Similarity 53% Idle Cave Miner is an idle game about crafting items, mining gems, and building your team of miners. Prestige, craft, and travel to other mines to increase your strength to dig deeper, and find what lurks below. Idle Cave Miner is a idler, clicker and mining game developed and published by Cold Hours. Released on December 07th 2023 has received 664 reviews of which 538 were positive and 126 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 768 players due to its free access, this strategy game has achieved the #5 position in the best free games like Idle Monster TD.
7.7
538
126
768
players
6. Idle Clans
Similarity 52% Idle Clans is a multiplayer idle game that combines the classic MMORPG experience with simplified gameplay and less time commitment. Features include a player-driven economy, PvE, trading, quests, crafting and opportunities to play, socialize and collaborate with other players. Idle Clans is a massively multiplayer, idler and clicker game developed and published by Isam Games. Released on April 07th 2023 has received 1,108 reviews of which 807 were positive and 301 were negative resulting in a rating of 7.0 out of 10. Attracting a solid base of 642 players due to its free access, this strategy game has achieved the #6 position in the best free games like Idle Monster TD.
7.0
807
301
642
players
7. Idle Skilling
Similarity 51% Idle Skilling is the ultimate Idle Game with years of content! Meant to be played for 5-10 minutes a day, you gradually unlock new skills like mining, fishing, pet breeding, crusading, potion-making, lab-research, construction, and more! With new updates coming, you'll never run out of stuff to do! Idle Skilling is a free to play, idler and simulation game developed and published by Lavaflame2. Released on September 15th 2022 has received 2,175 reviews of which 1,555 were positive and 620 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 276 players due to its free access, this strategy game has achieved the #7 position in the best free games like Idle Monster TD.
6.9
1,555
620
276
players
8. Soda Dungeon 2
Similarity 52% Everyone’s favorite laid-back dungeon crawler returns in Soda Dungeon 2. Featuring a new adventure, a whole town to upgrade, crafting, new classes, alternate dimensions, and more! It’s everything you loved about the original plus all the stuff you’ve been asking for. Soda Dungeon 2 is a free to play, idler and rpg game developed by AN Productions and Poxpower and published by Armor Games Studios. Released on July 09th 2020 has received 5,380 reviews of which 5,079 were positive and 301 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 271 players due to its free access, this strategy game has achieved the #8 position in the best free games like Idle Monster TD.
9.1
5,079
301
271
players
9. Idle Spiral
Similarity 54% This is a beautiful "Idle", "Incremental" game based on spirals and mathematics. Your goal is to make the spiral grow farther and farther from the origin. The game is very simple, but it is very deep and can be enjoyed for a long time! Idle Spiral is a idler, simulation and clicker game developed by Idle System, Inc. and Yayu and published by Idle System and Inc.. Released on April 30th 2022 has received 1,743 reviews of which 1,416 were positive and 327 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 257 players due to its free access, this strategy game has achieved the #9 position in the best free games like Idle Monster TD.
7.8
1,416
327
257
players
10. Grim Clicker
Similarity 56% Grim Clicker is an IDLE/RPG clicker where you will find your own strategy to explore the lost worlds. Inspired by games such as Diablo, Grim Dawn, Dark Souls, etc., the game features a complex character development, many unique items, active and passive playstyle. Grim Clicker is a clicker, idler and free to play game developed by EvilCharm Games and published by EvilCharm Games and Aleksandr Golovkin. Released on January 30th 2024 has received 2,770 reviews of which 2,184 were positive and 586 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 174 players due to its free access, this strategy game has achieved the #10 position in the best free games like Idle Monster TD.
7.6
2,184
586
174
players