Underplayed Gems

Booster (2025)

Booster cover

Developer: mar
Platforms: Windows
Genres: Casual, Free To Play
Rating: 4.0 of 5, 19 player ratings
Typical playtime: about 1.5 hours
Where to get it: Steam

How it feels

An idle, low-stakes card-collecting loop where you open a pack every few hours and enjoy the small thrill of random pulls.

casualidlecollectiblereward-drivenrandomrepetitivefree-to-playlow-effort

Screenshots

Booster screenshot 1

Booster screenshot 2

Booster screenshot 3

Booster screenshot 4

Booster screenshot 5

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Cards, the Universe and Everything (2025)

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? Tell the Catbot what you feel like playing and it picks from the whole catalog, or browse by platform and genre.