I’m moving away from proprietary apps and want to find open-source games on Android that are genuinely good, not just time-killers or kids’ titles.
My criteria:
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Truly open source (repository available, ideally on F-Droid)
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No ads, no trackers, no in-app purchases
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Modern feel and polished experience — something that feels like a real game, not a tech demo
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Made for adults: deep gameplay, challenge, real progression (any genre welcome — strategy, roguelike, RPG, racing, puzzle…)
I trust actual players over AI-generated lists, so: what open-source game on Android gave you the best experience, and why?


Unciv, HyperRogue. HyperRogue can be addictive but difficult if you stay in one region.
Unciv is an open source 4X civilization game.