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?


I’m sorry I don’t have a list to add to the conversation but one of your points made me curious:
What do you mean by “Made for adults: deep gameplay, challenge, real progression (any genre welcome — strategy, roguelike, RPG, racing, puzzle…)”?
As far as I’m concerned, real adult “games” don’t have progression: Basketball, football, baseball (do you count muscle growth?), chess (ELO is progression? one value?), backgammon (ELO I guess?).
What do you see as “real (adult) progression”?
edited (to make my misunderstanding bold)