Zombie Sandbox
First-person zombie survival in a procedural city you can dig under
What it is
Zombie Sandbox is a first-person survival game set in a procedural coastal city that you can dig underneath. You loot buildings by day, tunnel below the streets with a pickaxe you upgrade from wood to titanium, build a base, and survive the nights, with a horde that comes digging for you every seventh night.
It runs on Unity 6 with URP. The ground is a voxel grid where every block has a hardness, and world generation plus chunk meshing are Burst-compiled jobs over a chunk-major layout, which keeps a 1152 by 960 meter city streaming smoothly. The zombie AI uses A* pathfinding where solid blocks cost the dig time to break through, so they genuinely tunnel toward you. All the art and audio are generated by scripts in the Tools folder rather than imported, so the whole project rebuilds from code.
The runtime is one large assembly covering world, AI, items, tools, homestead, survival, and ten infected outposts.
Features
- Voxel ground with per-block hardness and pickaxe tiers from wood to titanium
- Burst-compiled world generation and chunk meshing over a chunk-major grid
- A procedural coastal city with furnished, searchable buildings and bunkers
- A* pathfinding where solid blocks cost the zombies their dig time
- Every model, icon and sound generated by scripts in Tools/
- Survival meters, crafting, farming, vehicles, and a seventh-night horde
Stack
~83,000 lines of C# · 232 runtime scripts · 1152 x 960 m procedural city