Simulation Games
28Simulation games model a system and let you poke at it: idle clickers that run while you sleep, city-builders that fit in a tab, sandbox toys with no goal at all. The web is the natural home for simulation experiments because they are cheap to build and easy to share. We collect the ones with a real model underneath, not just a progress bar.
Idle Necromancer
A 2022 js13kGames entry by Paweł Jamróz 'CutFuyi' — under 13KB of pure craft.
Idle Necromancer
A 2022 js13kGames entry by Paweł Jamróz 'CutFuyi' — under 13KB of pure craft.
Idle Merchant Guild
A 2023 js13kGames entry by Franck Ly — under 13KB of pure craft.
Idle Merchant Guild
A 2023 js13kGames entry by Franck Ly — under 13KB of pure craft.
electron life simulator
A 2020 js13kGames entry by lespin — under 13KB of pure craft.
desert-sim.sh
A 2020 js13kGames entry by kforbrok — under 13KB of pure craft.
Elements Craft
A 2014 js13kGames entry by Tanner — under 13KB of pure craft.
Crafty Cauldron
A 2025 js13kGames entry by Luke Nickerson — under 13KB of pure craft.
Clicker Pawry
A 2025 js13kGames entry by nihdao — under 13KB of pure craft.
13th Restaurant Rush
A 2024 js13kGames entry by Logan Tempez — under 13KB of pure craft.
Market Street Tycoon
A 2023 js13kGames entry by João Lopes — under 13KB of pure craft.
Necromancer Colony Sim
A 2023 js13kGames entry by Steven Lambert — under 13KB of pure craft.
Spacebar Clicker
A 2021 js13kGames entry by Bruno Croci — under 13KB of pure craft.
Space Garden
A 2021 js13kGames entry by Ryan Malm — under 13KB of pure craft.
NoteCraft
A 2020 js13kGames entry by Frank Force — under 13KB of pure craft.
Grow Back
A 2019 js13kGames entry by Dima Kurovsky — under 13KB of pure craft.
LibreCraft
A 2019 js13kGames entry by Indigo McDonald — under 13KB of pure craft.
SPACECRAFT
A 2018 js13kGames entry by Csaba Csecskedi — under 13KB of pure craft.
Bulletcraft
A 2018 js13kGames entry by Kamil Misiowiec — under 13KB of pure craft.
orbCraft13k
A 2014 js13kGames entry by Dustin Pfister — under 13KB of pure craft.
Diablo JS
Isometric minimal-code style game at html5 canvas and javascript
Tap Tap Adventure
Expansion of BrowserQuest
3d.city
3d city builder game
Blk Game
Multiplayer Javascript/WebGL voxel world game demo