Free games like Siegeturtle
Below are 9 free-to-play Steam games similar to Siegeturtle, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Siegeturtle page.
Ranked picks
- 1

Idle Hero TD - Tower Defense
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
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!
- 2

Once Upon a Galaxy
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
ONCE UPON A GALAXY is an easy to learn Card Battler with incredible strategic depth and near infinite fun! Which of your favorite characters from myth and fairy tale will you choose?
- 3

Trimps
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
A text-based incremental idle game with a ridiculous amount of unique content. Automate old stuff as you unlock new stuff to keep things interesting for hours and hours, no spam clicking necessary! Trimps is everything you love about your favorite games, distilled to their purest form.
- 4

Outpost
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
Outpost brings the perfect mix between survival and roguelite gameplay. Start the game in a randomly generated environment and try to adapt, and make it through as many nights as possible. How long can you survive?
- 5

Die in the Dungeon: Origins
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
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!
- 6

Farmer Against Potatoes Idle
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Indie with Siegeturtle.
Pick up your sword and fight off waves of Potatoes by upgrading your stats constantly, use Equipment, choose between different Classes, put your many Talents to good use, and so much more designed to keep you entertained for a long time.
- 7

Soda Dungeon 2
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Indie and Casual with Siegeturtle.
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.
- 8

Dota Underlords
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Casual with Siegeturtle.
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.
- 9

Cave Heroes
Free-to-play alternative to Siegeturtle — no purchase or trial window. Shares Strategy and Indie with Siegeturtle.
Lead a party of Cave Heroes to explore dungeons, battle monsters and defeat tough archdemons. Build your village, collect loot, rescue pets and much more in this idle RPG.