A while back i have made a survivor roguelike called "The Swarm" of wich im still very proud of!
I recently found this place, so why don't i recommend this game to all of you!

The game itself is a typical survivor roguelike with runs that can last infinitely, you are in a huge room, hordes of enemies are constantly spawning and you must defend yourself with the best weapon of them all: guns.
The game loop is simple:

- Kill enemies and gain exp

- Level up and take an upgrade

- Kill Boss

- Repeat

After each run you get some gems as a currency to use to unlock items to find, guns, general upgrades and etc 
The game also features a bunch of achievements to try and get aswell as a difficulty system wich allows you to make the game harder after each won run, but only if it was on the highest difficulty avaible to you. Each level adds and changes different parts of the game, with the maximum level being 15.
Good luck! Link: https://masxeboi.itch.io/swarm