
This led to several reprints by the new owners and publishers, resulting in three variants of the original Rolemaster game system. Throughout the various ownership and publisher name changes, Rolemaster remained popular, and the original books eventually sold out and went out of print. From 2017, the merger changed its name to Iron Crown Enterprises, effectively returning to its original, well-known publisher name. In 2016, the licensing went to Guild Companion Publications, with whom Aurigas Aldebaron merged. Iron Crown Enterprises (ICE) went defunct in 2000, and in 2001, they sold the intellectual rights of Rolemaster to the London-based company Aurigas Aldebaron while the ICE brand name was licensed to a US-based company named Mjolnir LLC. The older single-volume Spell Law was divided into three separate books, Of Essence, Of Channelling and Of Mentalism, each of which expands that realm of power with additional professions and spell lists. In 1999 the game underwent a slight restructuring when Rolemaster Fantasy Role Playing (RMFRP) was released, but this was mostly a rearranging of material with very few changes to the rules themselves.

The new rules were published in the Rolemaster Standard Rules book from 1995, but as with other editions of the game, a plethora of supplementary rulebooks and accessories were subsequently published. The method for learning spell lists was completely overhauled and most of the lists were adjusted and rebalanced. The combat sequence was revised, and some of the details of spellcasting were changed. Skills were now grouped into Categories of similar skills and one could buy ranks separately in the category and the actual skill. The biggest changes were to character generation, particularly in the number of skills available and the method for calculating bonuses for skills. In 1994 the game was revamped and re-released as Rolemaster Standard System (RMSS). Several additional supplementary books were published individually for the second edition, including three Creatures & Treasures books, and a lot of companion books, expanding the core rules. The supplement introduced ICE's original Loremaster setting, which would later develop into the more sophisticated Shadow World. Shortly after the first box, a new boxed set was released, containing all of the previous contents as well as The Cloudlords of Tanara, a detailed setting and adventure supplement. The box included Spell Law, a combined Arms Law & Claw Law, Character Law, as well as the Vog Mur campaign module for the Loremaster setting.

In 1984, an initial boxed set was issued containing both expanded and revised rules. These were available initially as individual books, and later as combined volumes and in boxed sets. This edition includes the original versions of Arms Law, Claw Law, Spell Law, Character Law and Campaign Law.
