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 26th 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 78,685 reviews of which 76,069 were positive and 2,616 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 11,899 peak concurrent players over the last day.
9.5
76,069
2,616
11,899
players
2. 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 1,889 reviews of which 1,616 were positive and 273 were negative resulting in a rating of 8.2 out of 10. While seeing 1,380 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.
8.2
1,616
273
1,380
players
3. 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 simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,977 reviews of which 15,607 were positive and 1,370 were negative resulting in a rating of 9.0 out of 10. While seeing 1,125 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.
9.0
15,607
1,370
1,125
players
4. 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 12,424 reviews of which 12,051 were positive and 373 were negative resulting in an impressive rating of 9.4 out of 10. With 1,062 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Idle Monster TD.
9.4
12,051
373
1,062
players
5. 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 7,047 reviews of which 6,139 were positive and 908 were negative resulting in a rating of 8.5 out of 10. With 931 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Idle Monster TD.
8.5
6,139
908
931
players
6. 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 671 reviews of which 544 were positive and 127 were negative resulting in a rating of 7.7 out of 10. With 889 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Idle Monster TD.
7.7
544
127
889
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 608 reviews of which 500 were positive and 108 were negative resulting in a rating of 7.8 out of 10. With 860 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
500
108
860
players
8. 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 609 reviews of which 387 were positive and 222 were negative resulting in a rating of 6.2 out of 10. With 774 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Idle Monster TD.
6.2
387
222
774
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 1,116 reviews of which 815 were positive and 301 were negative resulting in a rating of 7.0 out of 10. With 639 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
815
301
639
players
10. Magic Research 2
Similarity 56% 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. Magic Research 2 is a auto battler, idler and text-based game developed and published by Maticolotto. Released on May 21st 2024 has received 437 reviews of which 407 were positive and 30 were negative resulting in a rating of 8.6 out of 10. With 404 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Idle Monster TD.
8.6
407
30
404
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 26th 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 9,649 reviews of which 8,815 were positive and 834 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
8,815
834
-85%
6.67€
1.00€
2. 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 game developed and published by . Released on April 05th 2023 has received 9,649 reviews of which 8,815 were positive and 834 were negative resulting in a rating of 8.9 out of 10. Thanks to its incredible 85% discount, this game is now the #2 best deal in games like Idle Monster TD.
8.9
8,815
834
-85%
6.67€
1.00€
3. United Penguin Kingdom
Similarity 75% 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. United Penguin Kingdom is a strategy, strategy, city builder, city builder, survival and survival game developed by Turquoise Revival Games and published by GrabTheGames and UpgradePoint. Released on March 09th 2024 has received 385 reviews of which 297 were positive and 88 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 70% discount, this game is now the #3 best deal in games like Idle Monster TD.
7.3
297
88
-70%
14.79€
4.43€
4. Kingdom Rush Origins - Tower Defense
Similarity 50% Command your elven army and defend mystical lands from sea serpents, evil sorcerers, and wave after wave of gnoll tribesman, all with the help of brand-spankin’ new towers, heroes, and spells to fend off every last baddie. Kingdom Rush Origins - Tower Defense is a tower defense, strategy and 2d game developed and published by Ironhide Game Studio. Released on October 17th 2018 has received 7,001 reviews of which 6,715 were positive and 286 were negative resulting in an impressive rating of 9.3 out of 10. Currently offered at a 50% discount, this title has earned the #4 position in the best deals for games like Idle Monster TD.
9.3
6,715
286
-50%
12.49€
6.24€
5. 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 1,071 reviews of which 940 were positive and 131 were negative resulting in a rating of 8.3 out of 10. Currently offered at a 49% discount, this title has earned the #5 position in the best deals for games like Idle Monster TD.
8.3
940
131
-49%
14.71€
7.50€
6. 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 9,269 reviews of which 8,974 were positive and 295 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a 45% discount, this title has earned the #6 position in the best deals for games like Idle Monster TD.
9.4
8,974
295
-45%
9.99€
5.49€
7. 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 697 reviews of which 650 were positive and 47 were negative resulting in a rating of 8.7 out of 10. Currently offered at a 30% discount, this title has earned the #7 position in the best deals for games like Idle Monster TD.
8.7
650
47
-30%
7.79€
5.45€
8. Mob Factory
Similarity 56% 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. Mob Factory is a automation, simulation and tower defense game developed by LiterallyEveryone Games and published by LiterallyEveryone Games and IndieArk. Released on November 09th 2023 has received 433 reviews of which 311 were positive and 122 were negative resulting in a rating of 6.8 out of 10. Currently offered at a 30% discount, this title has earned the #8 position in the best deals for games like Idle Monster TD.
6.8
311
122
-30%
14.79€
10.35€
9. Scarlet Tower
Similarity 55% 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! Scarlet Tower is a vampire, vampire, action roguelike, action roguelike, pixel graphics and pixel graphics game developed and published by Pyxeralia LLC. Released on March 25th 2024 has received 2,184 reviews of which 1,801 were positive and 383 were negative resulting in a rating of 7.9 out of 10. Currently offered at a 25% discount, this title has earned the #9 position in the best deals for games like Idle Monster TD.
7.9
1,801
383
-25%
3.99€
2.99€
10. Dungeon Inn
Similarity 53% This is a cozy strategy management game where you manage an inn placed cleverly at the mouth of a dungeon. Juggle visits and business from 2 rivaling guilds, maximize profits, but keep your double-dealing a secret! Keep everyone happy and watch your inn thrive! Dungeon Inn is a early access, simulation and casual game developed by Cat Society and published by Spiral Up Games. Released on November 13th 2024 has received 501 reviews of which 472 were positive and 29 were negative resulting in a rating of 8.7 out of 10. Currently offered at a 12% discount, this title has earned the #10 position in the best deals for games like Idle Monster TD.
8.7
472
29
-12%
12.79€
11.25€
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 26th 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 1,889 reviews of which 1,616 were positive and 273 were negative resulting in a rating of 8.2 out of 10. With 1,380 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
1,616
273
1,380
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 simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,977 reviews of which 15,607 were positive and 1,370 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 1,125, this game has secured the #2 spot in the ranking of free games like Idle Monster TD.
9.0
15,607
1,370
1,125
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 7,047 reviews of which 6,139 were positive and 908 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 931, this game has secured the #3 spot in the ranking of free games like Idle Monster TD.
8.5
6,139
908
931
players
4. 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 671 reviews of which 544 were positive and 127 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 889 players due to its free access, this strategy game has achieved the #4 position in the best free games like Idle Monster TD.
7.7
544
127
889
players
5. 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 608 reviews of which 500 were positive and 108 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 860 players due to its free access, this strategy game has achieved the #5 position in the best free games like Idle Monster TD.
7.8
500
108
860
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 1,116 reviews of which 815 were positive and 301 were negative resulting in a rating of 7.0 out of 10. Attracting a solid base of 639 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
815
301
639
players
7. 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, rpg and idler game developed by AN Productions and Poxpower and published by Armor Games Studios. Released on July 09th 2020 has received 5,395 reviews of which 5,093 were positive and 302 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 274 players due to its free access, this strategy game has achieved the #7 position in the best free games like Idle Monster TD.
9.1
5,093
302
274
players
8. 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 2,181 reviews of which 1,559 were positive and 622 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 258 players due to its free access, this strategy game has achieved the #8 position in the best free games like Idle Monster TD.
6.9
1,559
622
258
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 1,744 reviews of which 1,416 were positive and 328 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 212 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
328
212
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 2,771 reviews of which 2,185 were positive and 586 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 182 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
2,185
586
182
players