Disclaimer
Slopa is an indie project that relies on astonishing work done by programmers, designers, composers and everyone who chose to share their creations. Slopa respects intellectual property and tries to correctly attribute every piece of work used. If your work is used but you are not credited here, please contact credits@slopa.io and this page will be fixed.
3D Framework
Sokol by Andre Weissflog: github.com/floooh/sokol, license: zlib
Graphics Backends
WebGPU via Dawn by The Dawn & Tint Authors (Google), integrated through the emdawnwebgpu Emscripten port: dawn.googlesource.com/dawn, license: BSD 3-Clause
Metal by Apple, used for the native build: developer.apple.com/metal
3D Models
Dog: skfb.ly/6TKvt by Cyranek, license: Creative Commons Attribution 4.0
Frog: skfb.ly/oyvGC by demidrew, license: Creative Commons Attribution 4.0
Stylized Skeleton by Hot Strike Studio: hotstrikestudio.itch.io/free-stylized-skeleton, from itch.io
KayKit: Dungeon Remastered Pack by Kay Lousberg: kaylousberg.com, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Halloween Bits by Kay Lousberg: kaylousberg.itch.io/halloween-bits, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Fantasy Weapons Bits by Kay Lousberg: kaylousberg.itch.io/fantasy-weapons-bits, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Bits Bundle 1 by Kay Lousberg: kaylousberg.itch.io/bits-bundle-1, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Bits Bundle 2 by Kay Lousberg: kaylousberg.itch.io/bits-bundle-2, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Character Pack Mystery Monthly Series 4 by Kay Lousberg: kaylousberg.itch.io/kaykit-series-4, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Character Pack Mystery Monthly Series 5 by Kay Lousberg: kaylousberg.itch.io/kaykit-series-5, license: Creative Commons Zero, CC0, purchased from itch.io
KayKit: Character Pack Mystery Monthly Series 6 by Kay Lousberg: kaylousberg.itch.io/kaykit-series-6, license: Creative Commons Zero, CC0, purchased from itch.io
Low Poly Tree Pack by Arludus: arludus.itch.io/lowpolytreepack, purchased from itch.io
Modular Village Pack by Keith (Fertile Soil Productions): fertile-soil-productions.itch.io/modular-village-pack, license: Creative Commons Zero, CC0, from itch.io
Ultimate Animal Pack by WildMesh: patreon.com/wildmesh, purchased from Patreon
Stylized Medieval Village by JustCreate: cgtrader.com/3d-models/exterior/other/stylized-medieval-village, license: Royalty Free, purchased from CGTrader
Low Poly Medieval Village by JustCreate: cgtrader.com/3d-models/exterior/landscape/low-poly-medieval-village, license: Royalty Free, purchased from CGTrader
Full Mongol Warrior Costume Outfit by 3dia: cgtrader.com/3d-models/character/clothing/full-mongol-warrior-costume-outfit, license: Royalty Free, purchased from CGTrader
Mongol Helm: skfb.ly/6TqN7 by kaukatart, license: Creative Commons Attribution 4.0
Neko girl RIG: skfb.ly/orWGu by lorex, license: Creative Commons Attribution 4.0
Ultimate Nature Pack by Quaternius: quaternius.com/packs/ultimatenature.html, license: Creative Commons Zero, CC0
Low Poly Western Desert Asset Pack by dglopez: dglopez.itch.io/low-poly-western-desert-asset-pack-30-free-models, license: free for personal and commercial use, from itch.io
Medieval Catapult: skfb.ly/pCuOw by Bagadanga, license: Creative Commons Attribution 4.0
Music
AI-generated via Suno: suno.com, license: commercial use rights for songs made while subscribed
Skeletal Animations
Mixamo by Adobe: mixamo.com, license: royalty-free use per the Mixamo terms
Programming Languages
C by Dennis Ritchie
TypeScript by Microsoft: typescriptlang.org, license: Apache License 2.0
Compiler Toolchain
Emscripten, emsdk by Alon Zakai and contributors: emscripten.org, license: MIT / University of Illinois NCSA
Bun: bun.sh, license: MIT
Operating System
Linux by Linus Torvalds and many more contributors: kernel.org, license: GPLv2
General Libraries
stb by Sean Barrett: github.com/nothings/stb, license: MIT / public domain
fontstash by Mikko Mononen: github.com/memononen/fontstash, license: zlib
HandmadeMath: github.com/HandmadeMath/HandmadeMath, license: CC0 1.0 Universal
iqm (Inter-Quake Model) by Lee Salzman: github.com/lsalzman/iqm, license: MIT
Fast-Quadric-Mesh-Simplification by Sven Forstmann: github.com/sp4cerat/Fast-Quadric-Mesh-Simplification, license: MIT
naett by Erik Agsjö: github.com/erkkah/naett, license: MIT
sjson by Sepehr Taghdisian: github.com/septag/sjson, license: BSD 2-Clause
Fonts
Roboto by Christian Robertson (Google): fonts.google.com/specimen/Roboto, license: Apache License 2.0
Icons
Many icons across the game and the website are created by various authors of Flaticon, including Magnific: flaticon.com/free-icons/rpg
Texture Packs
99proceduralvol01 by juliovii: juliovii.itch.io/99proceduralvol01, purchased from itch.io
3D Modeling
Blender by the Blender Foundation: blender.org, license: GNU GPL
AI Assistance
Claude by Anthropic: claude.ai, used to assist with math, programming, debugging and to provide overall technical insights into optimization techniques
CDN
Cloudflare Pages by Cloudflare: pages.cloudflare.com