DECEITparty Download

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Deceit Party: private Deceit 1 Live matches with friends

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Private match

Join a friend or host your own / 1 to 6 players

Join Someone sent you an invite link Host Your PC runs the match
Get the launcher

Join

Open your host’s invite in the launcher

After you open the invite

  1. The launcher joins the group. The game doesn’t start yet.
  2. Click Join round when the host’s round is ready. Open Lobby lets you pick your character first.
  3. Disconnect leaves the group.

Host

Your PC runs the match / keep the launcher open

  1. Run Lancer-LAN.cmd. In Play, pick Host.
  2. Click Share online, then Copy invite link. Send it privately.
  3. Pick a map. Click Start round when everyone is in.
The launcher’s Play page, with the map picker, Start round and Share online.
  • Asylum
  • Arctic
  • Forest
  • Lumberyard
  • Mansion

Open Lobby lets you pick your character first. Stop sharing ends access.

The first time you click Share online, the launcher downloads and checks the tool it needs. No Cloudflare account needed. Guests need nothing extra.

Matches between two separate PCs are still being tested. Details

Download

Deceit Sandbox launcher / Windows 64-bit

Extract the ZIP, then run Installer.cmd. It makes a separate copy of the game. Your Steam install stays as it is.

Everyone needs Deceit 1 Live on Steam, a 64-bit Windows PC and the same launcher version.

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Setup, updates and file check

Help

Setup, updates and privacy

Setting up

You need your own Deceit 1 Live on Steam (v2022.3.3a, build 202302281423). The ZIP doesn’t include the game.

Extract the whole ZIP and run Installer.cmd. Pick your Deceit 1 Live Steam folder, then a new folder for the copy. You need the game’s size plus 1 GB free.

Host: run Lancer-LAN.cmd. Guest: open your invite link, or run Lancer-Joueur.cmd. Up to 6 players, host included.

Hosting online uses a small tool called cloudflared. The first time the host clicks Share online, the launcher downloads it, checks it and keeps it for next time. No Cloudflare account or admin rights needed. Guests don’t need it.

The launcher’s Support page: a setup check of this PC with every line OK.

In the launcher, Support has a setup check for this PC. It doesn’t test online play.

Updating and versions

Close the game and the launcher, then run Mettre-a-jour.cmd from the new ZIP. Everyone in the group needs the same version, so whoever is behind updates.

Who runs the match?

The host’s PC. When the host clicks Share online, the launcher starts cloudflared, which relays the group and the game through Cloudflare. Nobody opens a router port.

Cloudflare passes the traffic on, so it can see IP addresses and the match traffic. It isn’t encrypted end to end between players.

If the host clicks Stop sharing or closes the launcher, the relay stops. To play again, the host shares again and sends a new invite.

Is my invite private?

Treat it like a key. Anyone with the invite can join until the host clicks Stop sharing, even if it was forwarded. The address alone isn’t enough. Send it only to your friends.

The part after # stays in your browser and never reaches this site. This page removes it from the address bar and doesn’t save it.

Nothing happened when I clicked Open in launcher

The browser may have blocked it, or the launcher isn’t installed. This page can’t tell whether the launcher opened. Run Lancer-Joueur.cmd yourself, click Paste under Join online, then click Join.

Has it been tested between two PCs?

Not yet. Two launcher copies have been tested together on one PC. Rounds between separate PCs, each with its own Steam account, are still being tested.

Is this official?

No. Deceit Party is an unofficial community project, not a Steam lobby. The game art on this page comes from Deceit 1 Live and belongs to its owners. No cookies, no analytics.