https://github.com/pinguy/murkk

Game Created to Make it as Small as Possible - One Shot with Fable 5
https://github.com/pinguy/murkk

Last synced: 16 days ago
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Game Created to Make it as Small as Possible - One Shot with Fable 5

• Host: GitHub
• URL: https://github.com/pinguy/murkk
• Owner: pinguy
• Created: 2026-06-12T04:16:47.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2026-06-12T11:40:30.000Z (about 1 month ago)
• Last Synced: 2026-06-12T13:22:08.106Z (about 1 month ago)
• Language: C
• Homepage:
• Size: 2.24 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# .murkk

---

[![UI Preview](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_shotgun.png?raw=true)](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_shotgun.png?raw=true)

[![UI Preview](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_bile.png?raw=true)](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_bile.png?raw=true)

[![UI Preview](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_combat.png?raw=true)](https://github.com/pinguy/murkk/blob/main/nervk/nervk_armory_shot_combat.png?raw=true)

---

A 96K-spirit homage to **.kkrieger** (.theprodukkt, Breakpoint 2004). Native Linux,

single C file, no engine, no assets. Everything you see and hear is synthesized

at startup or runtime: the textures, the level, the creatures, the gun, the

sounds, the font.

**Stripped binary: 51,336 bytes.** Budget: 98,304. Headroom: ~46 KB.

## Build

Arch / CachyOS:

    sudo pacman -S --needed sdl2 mesa gcc

    ./build.sh

Debian / Ubuntu:

    sudo apt install libsdl2-dev libgl1-mesa-dev gcc

    ./build.sh

Or just: `gcc -Os murkk.c -o murkk -lSDL2 -lGL -lm`

## Play

    ./murkk                # fixed seed — it's a demo, same world every run

    ./murkk --seed 1982    # different complex

    ./murkk --smoke        # headless self-test: renders, screenshots, exits 0

WASD move, mouse look, LMB fire, ESC quit. The creatures are low — aim down,

same as the original's spiders. Find the green beacon. Red cubes heal,

yellow cubes are ammo.

## What is synthesized where

- **Textures** (startup, ~260 ms): tileable value-noise fBm over power-of-two

  lattices → heightfields (brick bevels, plate insets, bolt bumps, brushed

  streaks) → Sobel-derived tangent-space normal maps + albedo ramps with

  per-brick hash jitter, grime, and rust thresholds. Four 256² maps, zero

  files.

- **Level** (startup, <1 ms): seeded xorshift carves rooms, chains them with

  L-corridors, places lights (alternating warm sodium / cold mercury — the

  kkrieger murk), items, creatures, exit. Geometry batched into interleaved

  client arrays; tangent frames derived from axis-aligned normals identically

  in C and GLSL so the bump mapping lines up by construction.

- **Lighting**: GLSL 120, eight nearest point lights per frame with quadratic

  falloff, per-pixel normal mapping on all level surfaces, distance fog,

  muzzle-flash and impact lights injected as temporaries, sqrt gamma-out.

- **Creatures**: box-assembled quadrupeds posed per frame by column-major mat3

  composition — sin-swung legs while chasing, rear-up windup before the lunge,

  squash-and-stay-dead on kill. Emissive eyes.

- **Audio**: one SDL float callback mixing a detuned-55 Hz drone with filtered

  rumble under one-shot synth voices — noise-burst gunshot with a pitch-glide

  thump, hit ticks, descending-saw death, footsteps, pickup chirps. No

  samples.

- **Font**: 37 glyphs, 5×7, hand-packed bit array, 259 bytes.

## Verification

`--smoke` runs headless under Xvfb + llvmpipe: synthesizes everything, renders

the title and a staged firefight, writes both frames as PPM, exits 0. This

build was verified that way — the screenshots in this folder are its actual

output, software-rasterized.

## Honest deltas from real 96K practice

kkrieger's 96 KB was won with tooling this homage deliberately skips, so the

51 KB here is gentleman's-rules size-coding, not compo-grade:

- No packer. kkrieger shipped through **kkrunchy** (ryg's executable

  compressor). The Linux equivalents — `sstrip`, a `vondehi`-style stub over

  xz/zstd — would put this binary somewhere under 20 KB.

- No `-nostartfiles`/custom `_start`, no shader minification, no symbol diet.

  All left on the table as headroom.

- Dynamic linking against system SDL2/libGL/libc, excluded from the budget the

  same way kkrieger leaned on d3d9.dll and the MSVC runtime.

- kkrieger's levels were hand-authored inside werkkzeug, their operator-stack

  tool; mine are generated. Different trade, same philosophy: the level is

  data born at runtime, not bytes on disk.

- The RAM trade is faithfully reproduced: kkrieger famously unpacked into

  hundreds of megabytes of 2004-era RAM from its 96 KB. Disk was the only

  budget. Same here.

CC0 / public domain. Greets to farbrausch and .theprodukkt.