I picked up "Mafia: Definitive Edition" cheap the other day (I've linked it on Steam as it's still on sale for the next few days).
I was a fan of Mafia (the original from 2002) and felt it was cheap enough to give it a shot and I'm glad I did: besides the infamous/arduous racing level I found it to be very enjoyable overall.
I was sad to see that there wasn't any "Freeride Extreme" in the latest version (this was bonus, fun, ludicrous content, available after completing the game) as it would have been a nice addition, the "Freeride" mode is likewise a little lackluster but the actual campaign is great.
What was the last game you finished? Was it any good?
Terraria, by beating the Moon Lord on master mode. Oh, I'll be back, because I love playing it on the Steam Deck, and it's probably my most played game ever apart from TF2. Sadly, that game has aged badly.
How are you doing controls for Terraria on SD? Every scheme I’ve tried has been super clunky but I love that game and it is perfect for SD.