Procedural Generation in Roguelikes always keeps me playing them. Last Stand: Aftermath, Roboquest and Deadcells are perfect examples of keeping each run feeling fresh! So yeah Keeping things unpredictable is an less talked about feature in Rogulike that should get more attention

For a little inspiration if you wanted, these are some of my all time favorites that I've played:
Nightmare Reaper
Last Stand: Aftermath
Roboquest
Deadcells
Windblown
Risk of Rain (all of them)
Halls of Torment
Jupiter Hell
Tyrant Realm

Hope some of these help!

I've not touched the development process myself so idk if this thought can help much...but what I have touched is an absolute metric ton of Rouglikes and there's 3 things that always keep me playing: Loot that feels exciting, Progression systems that I want to explore, and awesome combat.

I only talk about cars when they look cool or it’s this car

This car is an actual work of art holy fuck

If someone doesn’t make this an actual game I’m gonna die unhappy

Look into emudeck, best thing I ever put on my steam deck

(The soundtrack for this game is straight out of a horror movie not even kidding, take 5 minutes and listen) youtu.be/qJhCqx1zIPw?...

Piglets big game