📺 HeadCase — Roblox Games

Overview

All three live on RobloxAll Private

The three games

Headcase: Signal Lost (Rivals)

• Daylight arena with four color-coded buildings, central bridge, four patrolling bots that fire on line of sight; PvP uses the same combat system (Pulse 4-hit / Burst 3-hit eliminations, server raycasts, magazines + reloads).
• Eliminations drop the victim's TV — hold E for a quick fragment (1 pt) or F for a deep download (2–3 pts); only one player can claim each signal; signals expire after 22 s.
• Private abilities: Trace (rival position marker), Cache (health + ammo supply), Echo (decoy wearing the extracted rival's face); five fragments unlock each of six faces.
• Three-minute rounds, winner/tie notices, respawns; TV faces crack below 35 HP and go NO SIGNAL on elimination.

Steal a Head Case

• Eight bases, one slot each; central conveyor sells Common Snowbox ($100, $5/sec) and Rare Prism ($250, $15/sec) at 80/20 odds; at most ten unsold units on the belt.
• Buy → carry → park starts income; steal from unlocked bases transfers ownership; 20-second shield consoles recharge after 30 s (10-second opening); parking into a full slot explicitly replaces without refund; interrupted steals return units (or refund the original owner if the slot was refilled).
• Carrying slows everyone to the same chase speed; Q cancels a carry; 60-second carry timeout; leaving removes your units — no persistence in v1.

Grow a Head Case

• Four players × six planting tiles; start with $100 and two Common seeds; plant → grow → carry → sell loop with three rarities: Common/Uncommon/Rare grow in 20/40/65 s, sell for $40/$150/$480, seed at $20/$70/$200.
• Seed kiosk with shared stock resetting every 45 s; shield console blocks theft for 20 s, reusable after 35 s; carrying a crop caps at 90 s; stolen Ready crops flip to red STOLEN on the victim's screen.
• Offline growth is a same-running-server rejoin simulation capped at five minutes — memory cache, no DataStore in v1.

Shared features

• One rig, one family — src/Rig.luau is byte-identical between Steal and Grow (SHA-256 match verified); Grow reuses Steal's SurfaceGui face construction, palettes, and carry transform.
• Self-contained places — python build.py embeds all sources into a single .rbxlx and re-verifies every embedded script against its source file; no uploaded assets (faces are drawn from Roblox's bundled white-square/circle textures).
• Server-authoritative rules — server owns cash, stock, timers, ownership, interaction validation and distances; client renders screens and carrying. Proximity prompts give keyboard / controller / touch parity.
• Domain test suites — executable rule tests run with the official Luau CLI (10 scenarios for Steal, 12 for Grow).
• Rojo-compatible — each project ships a default.project.json so standard Rojo workflows also work.

Build & test flow

edit src/*.luau
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python build.py            # rebuild self-contained .rbxlx + verify embedded sources
python build.py --smoke    # (Steal) separate Studio smoke place
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luau tests/domain.spec.luau   # pure rule tests, no engine needed
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Roblox Studio → open .rbxlx → F5 / Server & Clients test   # live acceptance
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publish via Studio (File → Publish to Roblox As) → set Private in creator dashboard

Tech

🗂️ Roadmap

• ☐ #1 Rivals: live multiplayer + touch device acceptance pass
• ☐ #2 Rivals: custom face skins (uploaded art) for TV heads
• ☐ #3 Rivals: phone ↔ game two-way event prototype
• ☐ #4 Rivals: persistent saves for fragments / unlocked faces
• ☐ #5 Rivals: audio / SFX pass
• ☐ #7 Rivals: multiplayer extraction-reward + device emulator testing, final welcome-screen protection recheck after fresh playtest.
• ☐ #8 Durable persistence decision: Steal/Grow currently have none / memory-cache offline growth; DataStore saves are the obvious v2.
• ☐ #9 Set published Max Players in Roblox place settings (8 for Steal, 4 for Grow) — scripts can't write it.
• ☐ #10 Live two-client acceptance clips: Steal steal/chase/replace sequence; Grow steal → red STOLEN → sell; both on touch.
• ☑ #11 Roblox publishes are done — all three Private (Sep 12). Remaining: live two-client acceptance clips (below), the Steal content questionnaire, and durable-persistence decisions. — done 2026-10-20

Live roadmap, managed as GitHub issues (roblox issues). Add or close items on GitHub — ☑ = done, close as “not planned” to remove.

Test results

2026-09-10 — validation passes

• Steal — six game scripts + smoke module compile; all 10 domain tests pass (payments, income, stealing, shield expiry, competing claims, capacity, replace, return/refund, cleanup, stock/carry expiry); both XML places parse with matching embedded sources. Live playtest stalled by Studio's updater, not by the game.
• Grow — all six sources compile; 12/12 domain scenarios pass; place builder re-verifies embedded sources; Rig SHA-256 matches Steal exactly. Live Studio playtest confirmed cash/seed HUD, plot spawn, planting, growth to Ready face, and harvest carry; billboard size/TV orientation fixes applied from visual inspection (final carry-facing tweak compiled but not rechecked visually).

2026-09-04→09-11 — Rivals

• Four scripts pass the official Luau compiler; place XML parsed with unique IDs and exact source matches.
• Version 2 opened and playtested in Studio: arena, welcome screen, bots, round timer, first-person damage, respawns, ammo all observed; FallenPartsDestroyHeight startup error found and fixed in the place file.
• Published to Roblox via Studio automation (Sep 11) — playable at the link above.

2026-09-12 — all three published Private

• Codex computer-use drove Studio + the Creator Dashboard end-to-end: Grow's audience flipped Public → Private; Steal published from the production .rbxlx as a new Private experience (max players 8, verified after reload); the public games API returns masked/zeroed data for both universes, consistent with Private.