- Trench Decay lobby setup starts on the Roblox game page — launching the game places you in a shared deployment server.
- Squad play is the core loop: group up with friends before deploying so you can assign lanes together.
- Official channels (the Studio Rook Discord and Roblox group) are the best places to coordinate lobby invites and find teammates.
- Voice or text comms dramatically improve hold-the-line defense and extraction success.
- Extraction rules the run: never loot deeper than your squad's exit window allows.
How Lobby Hosting Works in Trench Decay
Trench Decay how to make a lobby is one of the first questions new players ask — and the answer starts with understanding that Trench Decay, like most Roblox squad shooters, uses server-based deployment rather than a traditional "create custom lobby" menu. When you launch the game from the official Roblox game page, you are placed into an active frontline server where you and other players form deployment squads before the wave-defense and extraction loop begins.
Because the game is built entirely around squad-based co-op survival, the practical version of "making a lobby" is controlling who ends up on your server and in your squad. Roblox gives you several tools for this, and Studio Rook's official community channels fill in the rest.
| Method | What It Does | Best For |
|---|---|---|
| Roblox "Join Game" with friends | Launches you and friends into the same server | Playing with 1-3 people you know |
| Server browser (Servers tab on game page) | Lets your group pick the same server manually | Larger groups and community runs |
| Studio Rook Discord | Find squadmates and coordinate lobby meetups | Solo players looking for a squad |
| Roblox Group page | Community hub for updates and team-ups | Staying current on events |
The most reliable way to get your whole group into one lobby is to have one player join first, then have everyone else click that player's profile in the Roblox friends list and select Join Game. This skips server-selection guesswork entirely.
Step-by-Step: Creating Your Squad Lobby
Follow this sequence every time you want to run Trench Decay with a coordinated team. Each step takes under a minute once you're used to it.
Gather your squad first
Coordinate with friends before anyone launches. Agree on who will join first — that player becomes the "anchor" whose server everyone else joins through the Roblox friends list.
Anchor player launches the game
The anchor opens the official Trench Decay game page and joins a server. If servers are full, check the Servers tab and pick one with open slots that fits your group size.
Everyone else joins via Join Game
Each teammate clicks the anchor's Roblox profile and selects Join Game. Roblox places them into the same server, forming your de facto private lobby.
Form up and assign roles in-game
Once deployed, organize your squad by class — Rifleman anchoring center, Assault on flanks, Medic one trench back, Support on chokepoints. Role assignment before the first wave is the single biggest predictor of squad survival.
Set comms and run your deployment
Hop into a voice channel (the official Discord at discord.gg/trenchdecay has community voice rooms) and run your loot, hold-the-line, and extraction plan together.
Roblox server slots are shared with random players. If your group is large, pick a server from the Servers tab with enough open slots — otherwise teammates may get locked out and placed elsewhere.
Lobby Roles and Squad Composition
Once your lobby is assembled, composition decides whether you hold the line or get swallowed by the gas. Trench Decay's class system rewards squads that cover assault, sustain, suppression, and utility at the same time.
Rifleman
- All-round line holder
- Reliable mid-range rifle
- High ammo efficiency
- Works in every campaign phase
Assault / Raider
- Close-quarters pusher
- Shotgun and SMG options
- Excels in trench raids
- Smoke-crossing specialist
Medic
- Sustain and revival
- Fast revive speed
- Heals bleed-outs
- Critical during gas pushes
Support / Gunner
- Suppression and resupply
- LMG lane-holding power
- Resupplies team ammo
- Shreds grouped waves
Engineer
- Fortification and explosives
- Builds barricades and wire
- Slows flanking raiders
- Objective defense anchor
Scout / Marksman
- Long-range pickoff
- Controls long sightlines
- Marks specialists with flares
- Early wave spotting
| Squad Size | Recommended Core | Key Addition |
|---|---|---|
| 2 players | Rifleman + Medic | Swap Medic for Support on defense chapters |
| 3-4 players | Rifleman, Assault, Medic | Add Support for late-campaign waves |
| 5+ players | Full core above | Add Engineer and Scout for coverage |
A squad running Rifleman + Support + Medic + Engineer covers every campaign phase: sustained fire, chokepoint suppression, revival safety, and fortification between waves. This core handles gas pushes better than any pure-damage lineup.
First-Run Lobby Checklist
Before your freshly assembled lobby deploys, run through this checklist. It covers the setup steps that most commonly wipe new squads when skipped.
Pre-Deployment Checklist:
- Confirm every squadmate is on the same server
- Redeem active codes for free starting currency
- Assign class roles and firing lanes (left / center / right)
- Agree on extraction timing before the final wave
- Set up voice comms in the official Discord
- Join the Studio Rook Roblox group for member rewards
Studio Rook releases codes through the official Discord and Roblox group, usually alongside major updates like DUAL. Redeem them in-game before your first run so every squadmate can afford a real primary weapon instead of the starter pistol.
Common Lobby Problems and Fixes
| Problem | Likely Cause | Fix |
|---|---|---|
| Teammate placed on a different server | Server was full when they joined | Anchor re-joins via Servers tab with enough slots |
| Can't see the Join Game option | Player not on your friends list | Send a friend request, then rejoin after acceptance |
| Random players in your "private" run | Roblox servers are shared by design | Use voice comms and squad UI to coordinate internally |
| Squad scatters during waves | No lane assignments made pre-deployment | Assign lanes, not fixed positions, before wave one |
| Squad wipes at extraction | Looted past the gas exit window | Pull back one trench early every run |
Trench Decay does not currently advertise a fully private custom-lobby system. Your lobby is a coordinated group inside a shared server — plan around random allies, and treat squad comms as your real "private channel."
FAQ
Q: Can I make a private lobby in Trench Decay?
Trench Decay runs on shared Roblox servers, so there is no advertised fully private lobby option. The standard approach is one player joining first and everyone else joining through the Roblox friends list Join Game button, which puts your whole group into the same server.
Q: How many players can join one Trench Decay lobby?
Server capacity is limited by Roblox and shared with other players, so large groups should check the Servers tab on the game page and pick a server with enough open slots before committing.
Q: Where is the best place to find squadmates for a lobby?
The official Studio Rook Discord (discord.gg/trenchdecay) and the Studio Rook Roblox group are the main community hubs where players coordinate squads and lobby meetups.
Q: Do I need a full squad to start a lobby in Trench Decay?
No — you can deploy solo and team up with players already on the server. That said, a coordinated lobby with assigned class roles and lanes survives gas pushes and extractions far more consistently.