You were playing Rolemaster, first/second edition (RM2 essentially). Rolemaster Classic is an updated version of this, so it should be quite familiar to you.
There is also a newer edition (RMU) coming out soon (hopefully this year). It makes some significant changes to the game, but should still feel like Rolemaster overall.
You can see a breakdown of the different editions here: https://www.icewebring.com/what-is-rolemaster/