The April 2026 multiplayer update
Dome Keeper’s most-requested feature arrived as a free update on 13 April 2026 for anyone who owns the base game. It added both co-op and versus play, on Xbox Series X|S, Xbox on PC, Xbox Play Anywhere and Game Pass, with Steam support as well. A paid DLC, The Lost Keepers, launched the same day and added two new keepers — the Infiltrator and the Beastmaster (covered in the keeper guide).
Co-op: dig, mine and fight together
- Player counts. Up to 8 players online and up to 4 in local split-screen. You can combine them freely — two on one machine plus a friend online makes a 3-person team.
- Shared map, shared goal. Everyone works the same map: dig, collect resources, expand the dome and fight the waves together.
- A second weapon station. Domes gained an additional weapon station, so up to two keepers can fight at once. That helps — but the waves scale up to match, so bodies alone do not win.
- Strategy over stacking. The runs that work assign roles: one or two miners feeding the dome while the others hold the line. With two stations, a dedicated defender plus a dedicated digger out-produces everyone trying to do both at once.
Versus: two teams, two ways to win
Up to 8 players split into two teams, each with its own dome on the shared map. Before the match you pick one of two win conditions:
- The last dome standing — your dome is the one left alive.
- First large delivery — your team is the first to deliver a large resource payload.
You can also sabotage the other team, which is the mode’s real hook:
- Steal their resources while they are carrying them.
- Buy upgrades that strengthen the waves the other team faces.
- Unearth a corrupt relic that buffs the waves against your rivals.
Before a versus run you can choose modifiers to make the competition easier or harder.
The Lost Keepers DLC
The same-day paid DLC adds two keepers with their own playstyles: the Infiltrator (nimble, rope and skilled jumps, explosive kunai mining) and the Beastmaster (arcane, tentacle mining, catgoblin minions). Both are detailed in the keeper guide. Both modes share a separate multiplayer leaderboard.
Patch note context
The wiki’s update log shows the multiplayer backbone kept improving after launch: v5.0.4 (21 May 2026) let clients share unlocked elements with the host for a combined loadout, and v5.0.5 (16 June 2026) made the Second Station available from the start in multiplayer (weapon disabled until upgraded) so multiple keepers can buy upgrades at once, and added modifiers to enable that second station’s weapon from the start in Versus and co-op Relic Hunt.
Related guides
- Keeper Guide — Infiltrator and Beastmaster from the Lost Keepers DLC.
- Dome and Keeper Guide — pairing a dome with a keeper for co-op roles.
- Defense Guide — the two defence axes that matter when two stations are live.