Super Evil Megacorp has released the free Shell Squad Co-Op Update for Teenage Mutant Ninja Turtles: Splintered Fate, introducing 24 cooperative powers, eight tools and eight character masteries. Available from November 10, 2026, the update expands the game’s multiplayer progression with new team-based abilities, character swapping and improvements to both online and local cooperative play.
The developer detailed the additions in an official Steam announcement, confirming that cooperative sessions now feature exclusive powers and tools designed around teamwork. The update introduces 40 new cooperative abilities, tools and masteries combined, giving players additional ways to support teammates and coordinate attacks during roguelike runs.
The 24 new cooperative powers are distributed across eight power trees, with three additions per tree. Several abilities allow players to share existing combat effects, recover health together or trigger additional damage through coordinated attacks.
Passing the Torch, for example, allows a player affected by Rapid Fire to transfer that effect to the first teammate they touch. The teammate retains the benefit while the original player’s Rapid Fire remains active.
Shared Warmth provides another support-focused option, healing the entire team whenever a player consumes a Splinter’s Revive. Meanwhile, Chain Reaction gives players’ Special attacks a chance to trigger Chain Lightning, dealing additional Utrom damage.
The update also introduces eight cooperative tools, with one assigned to each power tree. These provide new ways to control enemies and combine abilities during combat.
Bubble Trouble creates protective bubbles around the user and the most distant teammate. These bubbles deal Water damage, apply frost to enemies and provide additional Water damage to players.
Tether Beam connects a player to their nearest teammate, dealing Utrom damage every second to enemies caught between them. Shadow Pact grants Dark Shell protection to the user and their closest ally, with defeated enemies extending its duration.
Beyond the new powers and tools, Shell Squad introduces eight cooperative masteries, one for each playable character. The developer highlighted several examples involving the four original turtles.
Donatello can make the nearest teammate temporarily invulnerable when activating his Tool. Raphael’s mastery gives critical hits landed by any player a chance to become Multi-crits, while Michelangelo’s Special grants a Torrent Strike stack to himself and his closest teammate.
Leonardo receives a defensive mastery that grants Light Shell to the nearest teammate whenever he activates his Special.
These additions extend the game’s existing roguelike progression by introducing abilities whose effects depend on teammates’ actions and positioning.
Super Evil Megacorp has also made several multiplayer improvements. Players can now swap characters during online multiplayer and local couch co-op matches, providing additional flexibility when assembling a team.
The update includes improved flame visuals and clearer Lucky Dice communication, although the developer has not detailed further technical changes associated with these improvements.
Alongside the free update, Super Evil Megacorp has released the optional Trench Coat Pack as premium downloadable content. The cosmetic pack provides trench coats and hats for the playable characters, including those introduced through previous DLC releases.
Unlike the cooperative gameplay additions, the Trench Coat Pack is a separate paid purchase. Players do not need to buy the cosmetic content to access the new Shell Squad powers, tools or masteries.
Teenage Mutant Ninja Turtles: Splintered Fate is a roguelike action game supporting cooperative multiplayer for up to four players. Its gameplay combines randomized combat encounters, character-specific abilities and progression systems as the turtles battle enemies while attempting to rescue Master Splinter.
The Shell Squad update is available for the game, which is released on PC through Steam and the Epic Games Store, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S, Nintendo Switch and Nintendo Switch 2.
The release adds another cooperative-focused update to the current console lineup, which also includes multiplayer titles such as The Outlast Trials on Nintendo Switch 2.
The new cooperative abilities and multiplayer improvements are available at no additional cost to existing Splintered Fate players.
