I took a Unity3D game dev course and this was my final project: a zombie escape game. I'm not personally a huge fan of the genre, but had a blast making it.
I'm not terribly proud of the menu system, but was more focused on creating a fun 5-10 minute experience.
The bullets, shells, and buildings were all made in ProBuilder, everything else:
Zombies are from: https://assetstore.unity.com/packages/3d/characters/humanoids/zombie-30232
Props:
https://assetstore.unity.com/packages/3d/props/pbr-dirty-jack-in-the-box-88659 https://assetstore.unity.com/packages/3d/characters/humanoids/mutant2-140937 https://assetstore.unity.com/packages/3d/props/brain-meal-89596 https://assetstore.unity.com/packages/3d/environments/hospital-horror-pack-44045 https://assetstore.unity.com/packages/3d/props/horror-assets-69717 https://assetstore.unity.com/packages/3d/props/free-pbr-barrel-108702 https://assetstore.unity.com/packages/3d/props/free-cans-opened-pack-145723 https://assetstore.unity.com/packages/3d/environments/industrial/garbage-heap-the-last-70773 https://assetstore.unity.com/packages/3d/props/urban-dumpsters-pack-84804 https://assetstore.unity.com/packages/3d/props/exterior/bench-75025 https://assetstore.unity.com/packages/3d/environments/urban/street-lamp-7738 https://assetstore.unity.com/packages/3d/props/tools/medical-saw-110165 https://assetstore.unity.com/packages/3d/environments/snaps-prototype-office-137490 https://assetstore.unity.com/packages/3d/vehicles/ruined-car-5909 https://assetstore.unity.com/packages/3d/vehicles/rusty-cars-3437 https://assetstore.unity.com/packages/3d/environments/roadways/vehicle-parking-lot-garage-gate-pbr-111423https://assetstore.unity.com/packages/3d/environments/morgue-room-pbr-65817 https://assetstore.unity.com/packages/3d/environments/pbr-hospital-horror-pack-free-80117 https://assetstore.unity.com/packages/3d/props/furniture/boxes-pack-32717
Weapons:
https://assetstore.unity.com/packages/3d/props/weapons/pump-shotgun-aaa-pbr-138610 https://assetstore.unity.com/packages/3d/props/guns/modern-weapons-pack-14233
Sounds: https://assetstore.unity.com/packages/audio/sound-fx/creatures/free-zombie-character-sounds-141740 https://freesound.org/people/cylon8472/sounds/249686/ https://freesound.org/people/soykevin/sounds/213509/ https://freesound.org/people/InspectorJ/sounds/352514/ https://freesound.org/people/kyles/sounds/450900/ https://freesound.org/people/Argitoth/sounds/38964/ https://freesound.org/people/Marregheriti/sounds/266105/ https://freesound.org/people/Ali_6868/sounds/384859/ https://freesound.org/people/Yoyodaman234/sounds/166506/ https://freesound.org/people/Shelby_Wideman/sounds/178141/ https://freesound.org/people/ScreamStudio/sounds/432090/ https://freesound.org/people/IPaddeh/sounds/422852/ https://freesound.org/people/AGFX/sounds/42943/