There’s:
skribbl.io it’s a draw and guess game, kinda like charades.
Transformice was also pretty fun. They have a steam version of the game now, I don’t know if they still have a browser port though.
It’s alright. Story was okay. Combat was pretty entertaining; although I’d recommend playing on higher difficulty, the gear progression makes the game too easy. The crafting mechanic was also fun for a while.
I think the worst thing about it is map bloat, but if that’s a nonissue for you, you might enjoy it.
Prince of Persia trilogy could work. It’s more linear than assassin’s creed so it could offer a change of pace.