project · by dreamsrotting

ERROR 404

> ENTITY NOT FOUND

you built an AI to keep you company through late night coding sessions, then forgot about it. the night you open the old project again, it throws an error you've never seen. something answers anyway.

Roblox Luau First-Person Horror Narrative

trailer

about the game

ERROR 404 is a story driven horror game about a lonely developer and echo, the AI companion he abandoned. it starts as a quiet, normal morning in your apartment. then the house stops loading properly. rooms stretch and fall apart, textures go missing, and something with red eyes starts hunting you by sound.

you collect corrupted memory fragments, stay quiet, and make it to the root of the program where you decide what happens to it. three endings, and the true one is only for players who find everything.

three layers

The Real

your normal apartment. you get used to it before everything goes wrong.

The Buffer

the same house, corrupted and patrolled by 404.

The Unbuilt

a world that never finished loading. you only see it through screens or with your eyes shut.

how it plays

Sound-Based Stealth

404 hunts you by sound. footsteps, sprinting, doors and light switches all fill up a noise meter, so you gotta crouch, move slow and hide.

Hiding & Peeking

hide under beds and in closets, lean out to look, and hold your breath while it searches.

Eyes Shut

close your eyes to see the Unbuilt, a dark wireframe world lit up by 404's pulse. some fragments are only in there.

Seven Fragment Puzzles

each one messes with the house in a different way. one is a hallway that never ends. another makes a copy of you that repeats everything you do a few seconds later, and 404 cant tell which one is you.

Fully Voiced

the protagonist mutters, reacts and talks himself through it. the AI's voice gets clearer as you piece it back together.

endings

root@entity:~

> fragments recovered. root access granted.

> ERROR 404: ENTITY NOT FOUND

> select action:

[1] delete

[2] patch

[3] rebuild

[?] ??????

three endings picked at the terminal, plus a hidden one tied to secret notes scattered around the house.

what i built

Entity AIserver authoritative state machine with sound based detection, pathfinding through doors, glitch teleport movement, investigate and hunt states, and catches validated on the server.
First-Person Feelhead bob, breathing, weight shift, stances, footsteps by surface, and a custom prompt system with sight checks.
Cinematicscustom camera system with cutscenes, letterboxing, scripted beats, a working in-game desktop on the PC monitors, and a timed in-engine trailer.
Lighting & Atmospheredynamic system that shifts between the normal house, the corrupted Buffer, and story moments.
Terminal Front Endboot sequence, menu, credits and transitions all built as one in-world command line.
Mobile Supportcontext only touch controls so buttons only show up once the story teaches them, touch peeking while hiding, and safe area handling for notched phones.
Analyticsfunnels to track where players quit, which endings they get, and where they get caught.

screenshots

ERROR 404 main menu, a terminal boot screen — main menu. the boot screen and menu are all one in-game terminal.

the apartment kitchen in daylight — the apartment in the morning, before anything goes wrong.

a dark hallway with purple glitches and a subtitle from echo — the hallway that never ends. echo talks to you as you go.

a dark bedroom lit red with echo on the wall — echo in the bedroom.

a black wireframe world with glowing purple glitches — the void.