A platformer or such where you need to summon the right player character to pass the current obstacle; gathering resources in order to perform a summoning or series of summonings; turn based battles where you summon elements such as wind or lighting/monsters to attack your opponent (rip off Pokemon); a narrative about performing a summoning or the consequence of one; a villain trying to summon the demons of the underworld; summon courage; summon ghosts. That's all I can think of for now. Hope it might help someone who is stuck.