Dark Summoner continually hosts various special events, some of which contain their own sets of missions. These range from the straightforward tower-style events, where the point is to complete as many floors as possible, to a tournament with special rules for player vs. player battle. Other events include giveaway "bonanzas", where players receive items and rare monsters as a gift from the developers. These events are separated by a gap of 1 day, and usually last between 1 to 2 weeks.
Dark Summoner has previously had collection missions, which were comprised of collecting Orbs, randomly awarded for doing regular missions. The orbs could only be collected from uncompleted missions, in order to keep high-level players from farming 1-energy missions. There were several tiers of rewards, including unique summons, Ally Point and gold bonuses, and various potions.