Free games like Marpi OS
Below are 10 free-to-play Steam games similar to Marpi OS, 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 Marpi OS page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Marpi OS — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to Marpi OS — no purchase or trial window. Shares Simulation with Marpi OS.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 3
Travellin Cats in Paris
Free-to-play alternative to Marpi OS — no purchase or trial window.
Find 100 cats hidden in Paris, France in this cute hand-drawn hidden object game by Travellin Cats - the original viral hidden cat game creator!
- 4
Virtual Cottage
Free-to-play alternative to Marpi OS — no purchase or trial window. Shares Simulation with Marpi OS.
Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.
- 5
An Arcade Full of Cats
Free-to-play alternative to Marpi OS — no purchase or trial window.
Journey through gaming history's time and space, while searching for adorable feline companions in 'An Arcade Full of Cats,' the ultimate pet'em up hidden object game.
- 6
100 Asian Cats
Free-to-play alternative to Marpi OS — no purchase or trial window.
🏮🐈 100 Asian Cats - Join the cutest adventure in the Asia! 😻 🌸 Explore the charming hand-drawn artwork of Asian temples 🏯 as you embark on a quest to find 100 adorable cats hidden throughout the game. 🕵️♂️❌ Can you find them all? 🕵️♂️🐈✅
- 7
DORONKO WANKO
Free-to-play alternative to Marpi OS — no purchase or trial window. Shares Simulation with Marpi OS.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 8
Landfall Archives
Free-to-play alternative to Marpi OS — no purchase or trial window.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 9
ST World
Free-to-play alternative to Marpi OS — no purchase or trial window. Shares Simulation with Marpi OS.
Discover ST World - the next-generation voxel world! Build stunning high-resolution sandbox worlds with easy-to-use tools and AI features. Explore Riftwalkers' open-world adventures and join a thriving community.
- 10
Clip maker
Free-to-play alternative to Marpi OS — no purchase or trial window. Shares Simulation with Marpi OS.
Clip Maker is a creative tool for making videos, animations, visual novels, comics & VR scenes. Easy to use, packed with assets, and exportable in 4K, 8K, VR, GIF, and more.