FFX. I paid 20 for platinum edition like 20 years ago. Must have put in about 1500 hours. Naturally, I ruined this by buying the HD remaster on switch a year or two back for 50 like a fucking goober
The Witcher 3. Got this on sale for 12. One of the most epic games I've ever played, period.
Divinity Original Sin 2. Jesus christ, put 200 hours into this game already and I'm only 75% done. The first two acts were fucking hardcore but it's easy now.
Path of Exile. I mean, it's Diablo, but bigger and...free. I feel like I'm literally mugging the devs when I play this game.