Yo, I just bought myself a new early access game called “Risk of Rain 2”. If you buy it until tomorrow morning (I think) you get one copy for free (30.03.2019).
It’s a shooter but with random generated worlds and different difficulties. There is a single player and you can play co-op together with up to 4 players. Also you get many special items on your way, which help you, and you can also collect items which you can use as your special ability, like flying, rocket turret and more! 🙂
If you get the game, we can play together. Costs: 17,99€ – here a link: https://store.steampowered.com/app/632360/Risk_of_Rain_2/