I'm just gonna post a few a lot of thoughts on the games in the sale I've played:
Cold Iron is an interesting little game. It starts as a quick Old West quickdraw duel game, and through the short campaign is essentially a series of fast-reaction puzzles building on that theme in completely different environments. The duels are first-to-5 wins, so it can feel a bit repetitive early and be frustrating later. There are three levels with three duels in each, and you have to beat the whole level in one go. These are followed by a stupidly hard 'standard' duel and then a final boss that remixes a lot of what you've seen already. There are also a handful of shooting gallery challenges. It controls well and feels good to play.
If you're into that old-school arcade style of replaying for mastery, it's fairly meaty; as a one-and-done experience the story game it's short but sweet, if you like Old West trappings.
End Space I haven't played a ton of, but to my understanding it's the only full single-player space pilot dogfighty-game available for PSVR. I've played enough to say it's competent but not much else.
Gunjack is arcadey fun. You're basically manning a turret on a starship (kind of like those scenes in the original Star Wars trilogy where Han and Luke shoot TIEs from the Millennium Falcon). You're essentially gunning down waves of enemies in various formations. Classic sort of gameplay and it's dirt cheap.
Raw Data is one of my favorite games on the platform. It's a character-based wave shooter with some light tower defense elements. There's a good deal of variety between enemy types and how each character deals with them, 9 levels and various difficulties, a lot of replayability, and a decent narrative. Some of the controls are a little dodgy (I have never been able to pull off Saija's charge attack) and I did crash at the end of one level that was apparently once notorious for it, but I've certainly gotten my money's worth.
Resident Evil 7 is a must play. The atmosphere is great, it matches the tension of the original Resident Evil trilogy without totally throwing out the action elements of RE4 and beyond, and is generally a lot of fun to creep through the environments figuring out the puzzles and occasionally blowing away the bioweapons. The narrative isn't great but all the voice actors and such are excellent.
I feel like the Gold Edition is worth it; you get one of the two mini-campaigns (the other is technically free) that play quite differently (and more action-oriented) to tie up loose plot ends. The rest of the DLC is 'Banned Footage' which varies a bit more; you have a wave shooter type mode where you collect resources to build gear to stay alive for several waves, a short prequel of what happened to set off the events of the game, an escape room type game where you have to solve puzzles while avoiding the attention of a monster, and a very variant blackjack played under the watchful eyes of one of the gore-obsessed psychos from the main game.
The Solus Project is mostly a good game if you appreciate the genre. It bills itself as a survival game, but it's really an exploration/puzzle focused game where you occasionally have to manage your temperature and food/water. The atmosphere is great, the voice acting is superb (though there isn't much of it), and the gameplay is pretty solid if you're into it, though I feel the survival elements are too simple for enthusiasts and too annoying for casuals (note that you CAN turn these off).
The narrative is a garbled mess and I intensely dislike the ending, but the journey is worth it.
Sprint Vector is a game I'm just getting into, but I can really appreciate what it's going for. It's a novel racing game based around a simple sprint-like arm motion using the Moves. There's a lot of potential to it, but it's definitely the kind of thing you've got to develop your skills with to be any good at.
Ultrawings is a civilian flight sim often described as 'like Pilotwings'. You use the moves to operate all the bits in the cockpit, you do various flying through rings and popping balloons and taking pictures on a small chain of ~4 major islands. I'm not a big connoisseur of flight sims, but it strikes a nice balance between control complexity and arcade-y flying. It's a tad grindy (though I think a recent update adjusted this), but there are four planes to try and a LOT of missions to tackle. I recommend it if you're looking for a flight game that doesn't involve combat.
Wipeout is another one I haven't spent enough time with, but it's an exhilarating arcadey racer, especially if you aren't prone to motion sickness and turn off all the comfort options. All I can say is for $6 it's a real steal if you're at all into racing games.