Altruism's classic world: level 50 cap and x1 rates for the original grind.
2.2.3.2 · Cap 50 · x1 EXP
Crimson is RF Altruism's nostalgia world, with a level 50 cap and x1 EXP and drops (x2 force, x3 animus), aimed at the classic feel of RF Online.
It shares the Altruism account, Discord and London hosting with the Frontier world.