SENTINELS OF EARTH-PRIMENow is the Time for Heroes! Sentinels of Earth Prime is a cooperative card game that recreates the pulse pounding action of superhero comics. This epic team up between Green Ronin Publishing and Greater Than Games uses the rules of the hit game Sentinels of the Multiverse and the setting and characters of the critically acclaimed Mutants & Masterminds Roleplaying Game. IN Sentinels of Earth Prime, you can: Play a hero of the Freedom League like Lady