WhatsDab

v1.1.0·Updated 2026-08-07

Text the people in your lobby from the in game phone. Threads, unread counts, group and one to one chat, in both orientations. Needs Sideload.

About this mod Author’s original text

WhatsDab - Chat on the Schedule I Phone

🛟 Need help or found a bug? Get support at support.doodesch.de/whatsdab.

Text the people in your lobby from the phone you already carry. Threads, unread counts, group and one

to one chat, in both orientations. Written as three web files on

Sideload, which is also the mod to read if you

want to build your own phone app.

Source · Sideload · Wiki / docs · Support

Players

WhatsDab shows up as its own app on the in game phone and texts the people actually in your Steam lobby. One

thread per player plus a group thread, with a contact list and the conversation side by side, a search

filter, unread counts, coloured avatars, day separators, timestamps, a delivery tick, a typing indicator and

a send bar. Turn the phone with the game's own rotate keys and it switches to portrait, one pane at a time.

Any lobby works - plain co-op, one a gamemode opened, one from the main menu. It rides the same Steam lobby

chat the game already uses, so there is no server and no other mod needed. Everyone in the lobby needs

WhatsDab to take part.

Conversations stay in memory for the session and are never written to disk. Leave the lobby and they are

gone. It is safe to remove at any time.

Mod authors

This is the mod to copy. It references no Unity assembly, no IL2CPP interop and not Sideload

itself - only MelonLoader plus the single file Sideload.Api shim, which finds the host by reflection.

Game logic in C#, the entire interface in index.html / app.css / app.js, shipped as one DLL.

Core.cs one Apps.Register call, then only data

Chat/ChatBackend.cs the ENTIRE seam to the interface: 5 calls in, 1 event out

Assets/whatsdab/ the app

The same screen exists as hand built uGUI elsewhere: 781 lines of C# there against 518 lines of HTML, CSS

and JavaScript here, with more features. What the lines hold matters more than how many: one version computes

a chat bubble's height from text measurements, the other writes align-self and max-width.

Any file under Mods/whatsdab/ overrides the copy embedded in the DLL, so you can edit the app without

rebuilding. preview.html in the source tree runs the shipped app in Chrome without launching the game.

Guide, the exact CSS subset and the layout rules that differ from a browser:

the Sideload wiki.

Requirements

Schedule I (IL2CPP) with MelonLoader 0.7.3+ and

Sideload 1.0.1+ (pulled in as a dependency).

Settings

None. This mod has nothing to configure.

License

MIT. See the included LICENSE.md.

Install & use Install: follow the bundled instructions

  1. Unzip the archive from playbuff and read the bundled readme / instructions first.
  2. Most mods rely on the game's mod loader — the usual route is a community mod manager (such as r2modman): pick this game, install, and it handles the loader and dependencies.
  3. For a manual install, put the mod files into the matching Mod / plugins folder inside the game directory.
  4. Launch the game to confirm it loaded; mods with listed dependencies need those installed as well.

Install locations vary a lot between mods — the bundled readme is the most reliable guide.

Dependencies

Install these first, or the mod will not work:

LavaGang-MelonLoaderDooDesch-Sideload

File & checksum

Filename
WhatsDab-1.1.0.zip
File size
157.5 KiB
SHA-256
2da8467b3b97ef4c3388b1844639a35ac7437ba3a6546e04ca474159ec31a7b8
Stored at
2026-10-06 19:18