The Legend System, instead of adding the die totals up, the dice showing 3, 4, 5 or 6 are each counted as a success. Use of a skill requires rolling a certain number of such successes. Pips are not used in the Legend System. This variation of the system was referred to, in jest, as "The D6 variant for the mathematically challenged" on WEG's own discussion forum. The Legend System has been utilized in the Hercules & Xena Roleplaying Game and the DC Universe Roleplaying Game. Other variants, such as those featured in the Star Wars Live Action Adventure Game and the Star Wars Miniatures Battles game, involve rolling a single six sided die and adding the result to a skill or attribute. This total is then compared to a difficulty number, as with the other variants.
Some similarities can be drawn to games like Shadowrun, who also uses a D6 pool system counting successes on rolls of 5 or 6.