Free games like Colosseum Infection
Below are 8 free-to-play Steam games similar to Colosseum Infection, 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 Colosseum Infection page.
Ranked picks
- 1
Die in the Dungeon: Origins
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Strategy and Indie with Colosseum Infection.
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!
- 2
DFHack - Dwarf Fortress Modding Engine
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Strategy with Colosseum Infection.
Extensions for Dwarf Fortress, including bugfixes, interface improvements, automation agents, design blueprints, modding building blocks, and other tools.
- 3
Shape of Dreams: Prologue
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Indie with Colosseum Infection.
《Shape of Dreams: Prologue》is a unique game that blends action roguelite with MOBA-style gameplay. Edit your character's Memories to create your own champion. Face all challenges alone or play with friends in up to 4-player co-op.
- 4
Limbus Company
Free-to-play alternative to Colosseum Infection — no purchase or trial window.
As the Executive Manager of Limbus Company, lead your group of twelve Sinners, venture into the buried facilities of Lobotomy Corporation, and lay claim on the Golden Boughs.
- 5
Dota Underlords
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Strategy with Colosseum Infection.
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.
- 6
Minion Masters
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Strategy and Indie with Colosseum Infection.
An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!
- 7
Age of Empires III: Definitive Edition
Free-to-play alternative to Colosseum Infection — no purchase or trial window. Shares Strategy with Colosseum Infection.
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.
- 8
Alien Swarm
Free-to-play alternative to Colosseum Infection — no purchase or trial window.
Co-operative multiplayer game and complete code base available for free.