Plaster

A mag-fed paintball FPS

Dev log 01 — "Boot camp"

Squad: Spellthorn + Claude

Theater: the browser

01Concept

Plaster is a browser-based multiplayer FPS where every weapon is a mag-fed paintball marker. Reloads, rate of fire, magazine capacity and projectile behavior (paintballs arc and slow down, unlike bullets) are designed around how real markers play, not how real guns play.

The pacing target is old-school Call of Duty 4 and World at War hardcore Search & Destroy: tight maps, one life per round, no loadout bloat, no killstreaks.

02The vision

// design pillars — teal = in the build today, green = target

Obj 01

One hit, you're outLiveany hit eliminates — real paintball rules

Obj 02

Mag-fed onlyLivereal mag-fed markers, no hoppers, no guns

Obj 03

Hardcore S&D feelPlannedCoD4 / WaW hardcore search & destroy pacing

Obj 04

Realistic woodsballIn progressforest, wooden barricades, golden-hour haze — first map: Woodland

Obj 05

Objective-basedPlannedone life per round — not respawns

Latest update · 2026-10-17

Bomb carrier, spectating, sprint stamina

Search & Destroy: the bomb starts on the ground by the attackers' spawn, one attacker carries it and drops it when they're out, and you watch your teammates once you're out. Sprint is a little slower and runs on stamina. See Multiplayer and the changelog.

03Screenshotscurrent build

Captured from the current build on the Speedball field; the new Woodland map has its own page, Maps. Every model is also shown on its own on the Models page.

**Breakout from the Blue base**Your start position: bunkers across the field, two Red players moving up.

**Aiming down sights**Right-click brings the red dot to the center of the screen and zooms the view.

**“Hit!”**One hit and you're out: hand goes up, the ref whistles, you respawn at base.

**Paint sticks**Splats wrap around curved bunkers and fade after 20 seconds.

**The field**Current 34 × 50 m layout, each half a mirror of the other.

An online match: score bar, kill feed, teammates with name tags. — **Online 4v4**Team scores and clock, kill feed, name tags over teammates; bots fill empty slots.

The main menu: tabs on the left, the Play panel, and your player standing on the field. — **Main menu**Play, Loadout, Operators, Progression and Settings over a 3D lobby. See the Main menu page.

The menu: click, press Enter or A to play, with keyboard and controller layouts. — **Menu**Click, press Enter or Ⓐ to play. The controller row shows when one is connected.

The map editor: asset browser, 3D viewport with a selected bunker, hierarchy and inspector. — **Map editor**Where maps are built now. Play tests them in the real game. See the Map editor page.

04Build status

Engine	Three.js r186 + Vite, runs in the browser Live
Field	Per map: Speedball turf with inflatables, or Woodland terrain, forest and fog Live
Movement	Run, sprint, jump onto low bunkers, walk smoothly up stairs and slopes, sprint stamina, crouch (ends a sprint), lean Live
Controls	Mouse + keyboard, keyboard only, or controller (details) Live
Marker	The stock mag-fed marker plus any made in POE: fire mode, rate, magazine and reserve, ballistics, reload, look and sounds, picked in Loadout Live
POE	Object editor: marker configurations and model / texture / sound imports shared with the game and map editor (details) Live
Paint	Drop + drag ballistics; splats stick to bunkers and bodies Live
Maps	Speedball and Woodland, chosen in Practice or a private lobby; JSON files shared by the game, server and editor (details) Live
Map editor	Visual editor with save/load, undo and one-click playtesting (details) Live
Imported models	GLB models from Blender, placed in the editor, with box collision in the game (details) Live
Opponents	2 Red bots: cover, line of sight, reaction time, arced shots Live
Audio	24 synthesized sounds, 3D positioned Live
Woodsball	First forest map live (Woodland); golden-hour lighting and more maps to come Live
Plaster Engine	Windows desktop hub: every tool in its own window, on the same dev server (details) Live
Task board	Dev tool: tasks captured by typing or voice, organised, and worked through by Claude on request (details) Live
Main menu	Tabbed menu over a 3D lobby: loadout, operator name and number, XP, levels and career stats (details) Live
Multiplayer	Online with bots: public matchmaking 4v4 with a map rotation, private lobbies up to 8v8, authoritative server (details) Live
Game modes	Online: Team Elimination (first to 30 or 5 minutes) and Search & Destroy (rounds, one life, plant / defuse, first to 4), picked in matchmaking or a private lobby (details); endless practice offline Live

05Comms

Spellthorn→Claude● Transmitting

Update the design document to include screenshots. Also have a section for any models that were created, like our marker or a character or a paintball, and any sound effects with the ability to listen to them.

Plaster is built in conversation with Claude Code. Early builds had an in-game dev HUD and push-to-talk keys (V to talk to Claude, T to queue a to-do). The HUD was removed on 2026-10-16 to keep the game clean; the work now runs through the task board. Holding T captures a task by voice, even mid-match, and it waits on the board until you hand Claude a batch to work through. Building happens in the map editor.

Open the task board page

06Open questions

Not decided yet. Resolved items move into Build status and get a changelog entry.

Marker roster

There's one marker right now (see Models). Which real mag-fed markers do we model next, and does each need different stats or just a different look?

Lag compensation

Online hits are judged by an authoritative server (decided 2026-10-16, see Multiplayer). Open: whether to rewind players to what the shooter saw, and how far.

Speedball → woodsball

The target look is realistic woodsball (forest, wooden barricades, golden-hour haze). The first forest map, Woodland, is in (2026-10-17). Open: does Speedball stay as the public-match map, or does matchmaking rotate maps?

S&D rules

What replaces the bomb in paintball terms (flag hang? objective box?), round length, and how many rounds per match.

Follow the build

// every change, newest first

Read the changelog