If you liked Skyrim, check out Enderal - it’s a total conversion mod, but I’m Steam as it’s own game. It’s much more linear than Skyrim - the world still feels open, but it’s much more dense, and it’s scaled more like a traditional RPG, so if you wander off the intended path too far, you’ll get your ass beat by mobs that are much higher level than you.

Side quests are meh, with a notable exception of the Rhalata line, which is kind of like a combo of thieves guild and dark brotherhood. Main quest line is fucking wild.

If you skip the vast majority of side quests, you might have an issue with scaling, since you’ll be missing out on all that xp. If you run into that and don’t want to do the quests, just use the command console to cheat some in.