Delverium Multiplayer Guide: Online Co-op and Split-Screen Explained
Delverium plays solo, in online co-op, in local split-screen — and in split-screen and online at the same time. The two player limits are different numbers, and this page keeps them apart.
Early Access Note
Delverium is actively being developed. Recipes, balance, progression and other mechanics may change during future updates.
On This Page
Quick Answer
Yes. Delverium supports single-player, online co-op for up to 8 players, and local split-screen co-op for up to 4 players. You can also run split-screen and online players together in the same game.
Those two limits are different numbers, and mixing them up is the most common mistake people make about this game. 8 is online. 4 is local split-screen.
Does Delverium Have Multiplayer?
Yes. Multiplayer is a confirmed part of Delverium and was confirmed in the developer's own multiplayer update: the game supports playing solo, locally, or online with up to 8 players, and it supports simultaneous split-screen and online play.
That gives you four ways to play:
- Single-player
- Online co-op
- Local split-screen co-op
- Split-screen and online together in one session
If you are new to the game rather than to its multiplayer, the beginner guide covers the opening hours for the whole group.
How Many Players Can Play?
Two numbers, two modes, and they are not interchangeable:
- Online co-op: up to 8 players.
- Local split-screen: up to 4 players.
8 belongs to online play. 4 belongs to split-screen on one machine. If you take one thing from this page, take that.
Not the same number
Delverium does not support 8-player local split-screen. 8 is the online co-op maximum; local split-screen supports up to 4. A page that lists one figure for both is wrong about one of them.
What we have not confirmed is the headcount for a session that combines the two — see split-screen plus online below.
How Online Co-op Works
Online co-op supports up to 8 players. That is the largest group size Delverium supports, and it is the mode to plan around if you are organising a session with people in different places.
Eight is also a large enough group that it is worth deciding before you start whether you are all working on one base or splitting up — the beginner guide covers the opening hours, and those priorities apply to a whole group, not just to one player.
We are not describing host requirements, dedicated servers, invite flow or cross-platform support. None of that has been verified for the current build, and guessing at it would be exactly the kind of detail that leaves someone unable to connect and unsure why.
How Local Split-Screen Works
Local split-screen co-op is confirmed, and it supports up to 4 players on one machine and one screen.
What matters practically is that split-screen is a real supported mode rather than a single-player game with a workaround, and that its limit is its own number. Four people around one screen is the ceiling for local play; if you need to go beyond that, the extra players join online.
Can Split-Screen and Online Players Play Together?
Yes. Simultaneous split-screen plus online co-op is confirmed. A group sitting on one machine can play in the same session as players connecting online — so a household on split-screen and friends elsewhere can share one game.
This is the answer people usually want when they ask about the player limit: the modes combine rather than being either/or. We have not confirmed a total headcount for a combined session — how the 4 and the 8 add up is not something the developer has stated, and we are not going to invent a number by adding them together.
Controller Support
Full controller support is confirmed. Delverium is not a keyboard-and-mouse-only game, which matters more than usual in split-screen, where a shared machine often means at least one controller.
We are not listing specific supported controllers or any remapping options. That is hardware-specific detail we have not verified for the current build.
Steam Remote Play Together
Steam Remote Play Together is listed for Delverium on its Steam store page, alongside Steam Cloud. Remote Play Together is the Steam feature that lets someone join a local co-op game over the internet as though they were sitting at your machine — which, for a game with 4-player split-screen, is the obvious way to fill a local session with people who are not local.
That is as far as we can take it. We have not tested Remote Play Together with Delverium ourselves, we are not describing how to set it up, and we are not going to state how it interacts with the online co-op limit or with a split-screen session. The store page lists it; how well it performs for you is something to find out directly.
Steam Deck Multiplayer
Delverium is Steam Deck Verified. That is the store's own compatibility rating rather than our assessment, and it means the game is considered to work on the device without extra configuration.
For a game with controller support and local co-op, that is worth knowing: a Steam Deck is a plausible second machine for a split-screen-and-online session. We have not tested that setup ourselves, so treat it as a reasonable idea rather than a confirmed configuration.
If you are checking whether your own hardware can run the game at all, the system requirements and Steam Deck page has the official figures.