Co-op mode is done: https://emberfall.21mediaco.workers.dev/
I have not tested it extensively but I was able to see my other player in another browser.
This should let you join with 1-4 people in one server and play together in a party.
Also, my other tool made this slop, which I thought was funny.
karnage / Karnage
npub1r0…sq9ac
2026-09-26 00:19:34 UTC
Author Public Key
npub1r0rs5q2gk0e3dk3nlc7gnu378ec6cnlenqp8a3cjhyzu6f8k5sgs4sq9acPublished at
2026-09-26 00:19:34 UTCEvent JSON
{
"id": "1dcef67648bdc390b4bd121da5ee19ea9235bf222a48d19c7ae10229338b3678",
"pubkey": "1bc70a0148b3f316da33fe3c89f23e3e71ac4ff998027ec712b905cd24f6a411",
"created_at": 1790381974,
"kind": 1,
"tags": [
[
"client",
"halo"
],
[
"expiration",
"1821917974"
]
],
"content": "Co-op mode is done: https://emberfall.21mediaco.workers.dev/\n\nI have not tested it extensively but I was able to see my other player in another browser. \n\nThis should let you join with 1-4 people in one server and play together in a party. \n\nAlso, my other tool made this slop, which I thought was funny.\nhttps://media.21media.to/d0918cd0f53334d2f8dcc3a2d58501fdfa2e983681ade87c201c7af60eb1e35c.mp4",
"sig": "8635d472254352791a25684ede580ed4682fa9d407d3d1fc68de2646ab1c6f32ed27d4f590e9195da7ba0d359ae2772c1be0b5a5692748a01d99b08894971094"
}