Mothergunship is a FPS roguelite, where you get to build awesome-stupid looking guns between runs, getting temporary upgrades while blading everything. It often goes on 80% sales on GOG and Steam

Others mentioned brotato and vampire savior, there are several similar games like them nowadays, you can check their tags to look for more on Steam

Elder Scrolls Morrowind has janky as fuck combat (hidden dice roll to check if you actually hit) and the only way to get better is with higher numbers in your skills and attributes. You can use magic and potions, both of which you can make yourself, to boost yourself to godlike levels

Dynasty Warriors 8 offers several weapons for the characters, plus it lets you equip skills to make some actions better, like higher attack and higher attack while mounted. As soon as you learn how to block for quick camera turns, you've mastered the game