Patient Gamers

Doom (2016), Doom Eternal, Helldivers 2, Broforce

I'm enjoying Railway Empire. It's on for 75% off the base game and pretty good deal for the entire DLC & Japan collections.

If you love time-wasters with some challenges, then I'd recommend it.

Lingo ($6.99/$9.99) is an incredible exploration and word puzzle game. It also has a few excellent custom maps such as Duolingo and Liduongo.

A sequel (Lingo 2 $9.99) just released and is also excellent. It changes how puzzle rules are presented, making them playable in either order. It's a more polished experience though, so playing the first game after would probably feel like a step backward.

Caves of Qud has a small discount. I’ve been playing it a lot lately on the Steam Deck.

Here is a link to Steam DB showing popular games more than 50% off:
https://steamdb.info/sales/?min_discount=50&min_rating=70&min_reviews=500

Anno 1800 is 5 bucks. I love it, but you need to deal with Uplay as well

my reccomendation? whatever's on gog

in all seriousness, you can't go very wrong with games made by valve, portal especially.

Borderlands 3, if you somehow missed it, for under £5 is just a good value.

I just bought Suicide Squad (I know, I know, but it was on sale and I want to experience it at least a little); Pine; and Sniper Elite 2R, 3 and 4.

I'm very excited to get into the Sniper Elite games. I played 5 back when I had Game Pass, but never finished. I figured the others might be just as good.

I got myself and can recommend:
Returnal (29.99€) (Rogue-like shooter),
Wisper (6.99€) (Open world exploration) and Crossroads OS (3.74€) (Puzzle game).
I can further recommend:

Studio System (8.84€) (Horror),
With My Past (6.59€) (Puzzle),
Signalis (13.99€) (Horror).