My top 10:
- Resident Evil 4 – bought this thrice: PS2, PC, Switch.
- Warframe – f2p 3rd person looter-shooter, but no predatory microtransactions
- Guild Wars 2 – MMORPG, f2p, but it's more like a looooong demo
- Stardew Valley – indie pixel farming sim
- Control – supernatural, artsy third-person shooter
- Everspace - space dogfighting
- Counter-Strike: Global Offensive – pew pew
- Parkitect
- Victor Vran
- Ziggurat
more on my wiki pages: https://wiki.tilde.fun/games/start