I like pretty much anything but arcade and shooter.
Into the Breach is free if you have Netflix. I’m not sure if it’s for purchase otherwise but it’s a ton of fun.
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Dead Cells
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Dicey Dungeons
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Stardew Valley
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Bloons TD 6
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Slay the Spire
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Castlevania SotN
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Baba is You
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The Room (and its sequels)
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Game Dev Tycoon
Friendly reminder Bloons TD 6 is free for Netflix customers. Unsure if that’s all counties or restricted or tier restricted. It’s been pretty fun, but the best aspect is offline play.
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shattered pixel dungeon is a good time. It’s FOSS and you can also find it in fdroid.
Adding to a FOSS list: Mindustry and Unciv. The latter is an amazing Civilization 5 clone.
Of all the games I played on Android I think Monument Valley was the only native mobile game that I really enjoyed. I also played Stardew Valley on mobile, that worked quite well.
Monument Valley