The Spring 2026 Quartero’s Curios event introduces three new hero sets—Death Prophet: The Blue Lotus (Rare), Zeus: Stormfather (Rare), and Mars: WorldsEnd (Mythical)—with Tier 1 and Tier 2 outfits unlocked through progression.

Progression rewards include the new sets for Death Prophet, Mars, and Zeus, plus various Antiques and related rare items earned by leveling up during the event.

Valve launched the Spring 2026 Quartero’s Curios event, expanding the Dota 2 lore with Quintessa as a new sister character.

The event runs through early June, with rewards limited to the event period and potentially unavailable afterward.

Players who missed previous Quartero’s Curios rewards can purchase them with Dota Shards, for example reaching level 96 to unlock a level 100 reward at a cost of 33,750 Shards and 3,375 Quartero Points.

Antiques remain a focus, offering level-5 Antiques with rare Immortal or Arcana items, and Valve has fixed issues to prevent duplicate rewards from opening Antiques.

Zeus gains the Stormfather set, described as gaudy with angelic feathers and crackling electricity, featuring a prominent back piece called The Skybearer, with no upgraded tier.

The update introduces three spring-themed cosmetic sets—Death Prophet: The Blue Lotus, Mars: The Red Berserker (two styles) and WorldsEnd, and Zeus: Stormfather—released on the update date and included in Part 3 of Quartero’s Curios.

Quartero’s Curios Part 3 adds new skins for Death Prophet, Mars, and Zeus, with in-game effects included.

Progression is earned by playing Dota 2 matches (Turbo included to a partial extent), with levels unlocking various rewards.

Antiques let players choose one set from five random hero sets, introducing a chance-based reward mechanic.

Mars receives an upgraded tier path: The Red Berserker (Tier 1) with The Berserker’s Cut spear and The Berserker’s Clot shield, followed by WorldsEnd (Tier 2) featuring weapon and armor glow effects.