This game might be interesting for fans of Solitaire, with progression mechanics and meta systems borrowed from mobile games. However, I did not find it very enjoyable.

Watermelon Challenge is a silly little game, with simple concept of merging fruits until you get a bigger fruit. Can be enjoyed both alone or competing in multiplayer. Runs on potato hardware.

A great followup to classic adventure "Beneath a Steel Sky". The game will definitely flex your brain, but suffers a bit of tiwsted adventure games logic. Great graphics and gameplay in general.

A follow-up to amazing DOOM (2016), however they went a bit too overboard with modern "features" and "mechanics", suddenly you have to RPG style upgrade stuff, etc.

Great sci-fi horror game for when you want to get a little scared. A true classic.

The ultimate classic shooter, modernized. Feels great, plays great, doesn't screw around with unneccessary mechanics. Just pure simple single-player fun.

If you wanted to play something like Fallout: New Vegas in space, this is a great fit. The game doesn't take itself too seriously, you'll have plenty options to solve problems and carve your own path.

Great little tower-defense/strategic game with low leves of stress. Does not require a lot of time to learn controls and mechanics. Highly recommended for busy people.

Split/Second is older action-packed racing game. Features unique system of real-time vehicular and environmental destruction. Game is great for short sessions and includes split-screen multiplayer.

Great game to unwind with after a long day. Can be played with muscle-memory from childhood sessions. And be paused at any time. Only play this when kid(s) are already asleep and can't see the gore.