Did you use any third-party assets?
ASSETS:
2.5D FREE Tiles: Infernus Tileset by PVGames
Doomsday Tiles: Military Outpost Expansion by PVGames
8 - Directional Drone Robot by Hormelz - patrolling Robot
FREE ANIMATED CHARACTER "HOB" by W_K_Studio - Ghosty
FREE ISO - 8D ZOMBIE CHARACTER by W_K_Studio - Drainer

SOUNDS:
https://pixabay.com/sound-effects/spooky-effects-horror-video-game-background-so...
https://pixabay.com/sound-effects/zombie-pack-2-edited-69284/
https://pixabay.com/sound-effects/fire-sound-effects-224089/
https://pixabay.com/sound-effects/robot-heavy-mechanical-footsteps-194039/
https://pixabay.com/sound-effects/hit-metal-153323/
https://pixabay.com/sound-effects/metal-impact-247482/
https://www.epidemicsound.com/track/xAytW8AcMo/

2 background images has been produced with Copilot AI.