Free games like Idle Colony
Below are 8 free-to-play Steam games similar to Idle Colony, 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 Idle Colony page.
Ranked picks
- 1
Unnamed Space Idle
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Simulation and Casual with Idle Colony.
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
- 2
Revolution Idle
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Indie and Simulation with Idle Colony.
Join an experience where each revolution takes you further into the unknown! Revolution Idle challenges you to multiply your accumulators to reach unimaginable heights. Will you manage to reach infinity?
- 3
Trimps
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Casual and Indie with Idle Colony.
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
Idle Research
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Strategy and Indie with Idle Colony.
Idle Research is an addictive, resource management, incremental game with both idle and active playstyles. Research and craft colorful Flasks and Tubes to earn as much Energy as possible! Big numbers guaranteed.
- 5
Magic Archery
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Indie and Simulation with Idle Colony.
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.
- 6
Upload Labs
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Simulation with Idle Colony.
A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect
- 7
AdVenture Capitalist
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Casual and Indie with Idle Colony.
Welcome, eager young investor, to AdVenture Capitalist! Arguably the world's greatest Capitalism simulator!
- 8
Clicker Heroes
Free-to-play alternative to Idle Colony — no purchase or trial window. Shares Indie and Simulation with Idle Colony.
Click your way through hordes of monsters, earn gold, and recruit quirky heroes with powerful skills. Progress even while you're idle, and watch the numbers climb into the absurd. It’s a never-ending journey of clicks, crits, and colossal damage.