// Overlays
Co-op

Tower Defense

The whole chat defends the reactor together, wave after wave.

A chat-driven co-op tower defense. Enemies travel along fixed but per-wave reshuffled paths to the reactor in the center, and up to ten viewers build towers from a shared gold pool to stop them. With a coordinate grid so everyone sees exactly where they're placing.

Whole chatNo stakeOBS Browser Source
Live!join
Tower Defense
Preview coming
Tower Defense Twitch Overlay

Features

// What's inside

01Co-op for the whole chat, up to ten players share a gold pool
02Fixed but per-wave reshuffled paths that gather into a funnel before the reactor
03The number of paths grows with the wave, the next wave is already visible in the build phase
04Coordinate grid with letters and numbers along the edge, so everyone finds their square
05Six tower types with three tiers each: pistol, shotgun, MG, rocket, frost, tesla
06A boss every five waves, enemies get bigger and faster wave by wave
07Build board shows the exact upgrade command, cost and owner per tower
08Internal gold, no bot needed, optional reward via your loyalty bot
09Large countdown bar and auto-scrolling panels, readable straight from the stream
10Survives any OBS reload, team, towers, gold and wave are kept

How a round works

// Step by step

01
With !join you join the team, which opens the lobby and starts wave 1 after a countdown
02
With the shared gold the team builds towers with !set <weapon> <field>, in the build phase and during a wave
03
Slain enemies pay gold back into the shared pool
04
Every wave gets bigger and faster, every fifth wave brings a boss
05
If an enemy reaches the reactor it costs core HP, at zero the round is over

Chat commands

// What your community types

CommandWhoEffect
!joinViewerJoin the team, opens the lobby if no round is running
!set <weapon> <field>ViewerBuild a tower, for example !set mg b3, without a weapon the default one
!upgrade <field>ViewerUpgrade the tower on the field, up to tier 3
!sell <field>ViewerSell the tower, returns 60 percent of the investment
!startModSkip the lobby or build countdown and start the wave immediately
!skipModCut the build countdown short and start the next wave
!endModEnd the round and reset to idle

Key settings

// What you tweak in config.js

maxPlayers
Maximum number of players in the team (default 10)
gridCols / gridRows
Size of the arena in fields (default 13 x 8)
startGold
Starting gold of the shared pool
coreHp
Hit points of the reactor
buildTimeSec
Length of the build phase between waves in seconds
lobbyCountdownSec
Countdown of the lobby before wave 1, 0 waits for the mod
maxRoutes
Upper limit of simultaneous paths, grows with the wave
showRoutes
Show the paths and entry portals
arenaScale / uiScale
Size of the arena and the control interface

Screenshots

// From the overlay

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