Uploaded November 2025 | Updated September 2026, 2 weeks ago

---

For Unity’s 20th Anniversary Game Jam, I challenged myself to make a DOOM-like retro FPS in just a few days using Unity’s “Through the Ages” anniversary asset packs. In this devlog, I show how I planned the project, created 2D billboard enemies from 3D animations, built simple enemy AI, and used a pixelation shader to give everything that old-school DOOM look.

🎮 Play the game jam submissions!
itch.io/jam/unity-20th-anniversary-game-jam

📦 Patrons can download the full Unity project:
patreon.com/posts/doom-like-fps-143801292

🕹 Unity Tip (Pixelation Shader):
youtube.com/shorts/yluUILXZDLM

Have a question? Join my discord:
discord.gg/RQEtYHz

⏱ Chapters:
00:00 Intro
00:49 Planning with Trello & AI
01:53 Level Design & Scope Cuts
02:43 Creating 2D Billboards from 3D Models
03:39 Retro Pixelation Shader
04:00 Simple Enemy AI
04:30 Final Level Flow
05:10 Nostalgia & 20 Years of Unity

#madewithunity #unity3d #gamedev #gamejam