I recommend these games just because in my opinion they are great games that are fun to play.
Shadowrun Returns/Dragonfall/Hong Kong - I recommend trying to get the triple pack. I have even seen the original returns like 90% off before so it shouldn’t be to hard. Hong Kong is the newest but getting the collection so you can go through the story is just great.
Planetary Annihilation Titans - Titans is like the new version of PA and they have really improved it since their first release. The original Pa can be bought for like $1 though which is why i suggest titans.
Starpoint Gemini 2 - They recently had a big sale because they wanted to promote their new one coming on early access and it is a great space sim in my opinion.
Stardew Valley - Its a simple game that I personally loved it and they sold like a million copies of it with no sale so if you could manage to get that i bet it would sell well.
Space Pirates And Zombies - Its an awesome little game that was really fun to play. They are making spaz 2 and it should be out this year so im sure they would welcome you guys helping promote their games.
Recettear: An Item Shops Tale - Is a great game where you run an item shop and also farm for materials to make things in a kind of miniish dungeon. I loved it and as far as i know so has everyone i know who has ever played it.
Anomaly Collection - Its a kind of tower defense game that looks amazing and is fun to play. It also takes on a new way of looking at things and i really loved it. Anomaly warzone earths trailer was the reason i bought the first and once i finished it i bought every other one they made.
Kingdom Rush - Fun tower defense game but its not to hard to find a good sale on it since its been out a long time.
Dont Starve Collection - They are really fun survival games and i recommend trying for it if possible.
Sid Meiers Civilization 5 Collection - Its not hard finding the entire collection on sale for 75% off on something like the winter sale but i do recommend it.
Infested Planet - Its a kind of swarm rpg game with buildings if that makes sense. I really loved it when i bought it and i wasn’t expecting it to be one of my favorite games ever.
Strike Suit Infinity/Zero - Its a space sim game that looks amazing and is fun. I absolutely loved the soundtrack of it to and its rare that i like a soundtrack enough to buy it.
Xcom Enemy Unknown Complete Pack - Its a great game and with #2 being out i think getting the complete pack with all the dlcs wouldn’t be hard.
Wasteland 2 - Its more fallout then fallout is. Its like the old 1 & 2 fallout games but with a much bigger world in my opinion. The dev is always trying to improve it and add even more stuff for free to.
Transistor - It was an amazing game in both the game and the soundtrack and the art. To date it is the best soundtrack i have ever heard and i made sure i bought it. It even comes with 2 versions where she hums on every song and one where she doesn’t.
Darkest Dungeon - While still newish is a great although very hard game. I recommend trying for it in the future.
Banner Saga - Really good game with a nice art and in my opinion i really interest world lore. Since the second will be out soon i think it might be a nice one to try.
Banished - Its a cool kinda sim city type game only if you were villagers starting from nothing to make a town and such. I loved it myself. I think he is working on a second so it might be a nice one to try for.
Deponia Collection - I loved the art and story in it and watching everything unfold personally.
Metal Gear Rising: Revengeance - This is the most awesome badass game you will ever play. I really recommend this.
Europa Universalis 4 - It is the most complex and fun grand strategy game i have ever played. It has 41 dlcs and is just an amazing game. I think once a year it has a collection that has all but the last 2 or 3 expansions and their dlcs 75% off but even then it is expensive. I think it would be a great one to try to do.
Thats all i can think of atm and yes i have no life >.> think i spent an hour or 2 thinking this up lol.