Hi there, nice to meet you and welcome onboard!
I don't play games currently but I did in the past. I loved playing the first to third Doom version but the best for me was (I think it's already online) a racing simulator, not those easy arcade-like ones but a real simulator where you had to set up all the parts regarding different cars. I also played a league that was created at that time and it was really competitive. The game is Liveforspeed (https://www.lfs.net/). I also played some FP combat games (AA and CD) and LoL :P
Regarding blockchain games, I played Splinterlands where I have a decent deck but I stopped a year ago aprox. since my studies (I'm at university... again 😅) and RL stuff demands all my time nowadays.
My first game ever was this one... I better put you a picture here so you will catch it on the fly:

_{Source: https://www.pcsteps.com/7119-first-computer-game-1912/}

Best wishes for your new project! 🙌