Minecraft wiki entry for Creative, associated text: Mobs still spawn as they do in other game modes, unless Peaceful mode is active, (including from spawners) but all are passive toward the players and do not attack (even if they stare at the player in strange ways). If the player enters the End while in Creative mode, the ender dragon still attempts to attack the player, but cannot cause any harm.‌[Java Edition only] Zombies summoned by others calling for backup attempt to attack the player, but they still cause no harm, and they stop attacking after several seconds. The player can still ignite creepers with a flint and steel.