Game developer · YouTuber
Egor Kostenko · Kadoy
Let’s build something together
I’m Egor Kostenko — a Unity game developer who builds gameplay systems, prototypes, and tools, and breaks down how games work on YouTube.
I’m open to collaborations, contract work, and new projects. If you have something in mind, I’d love to hear about it.
Available for contracts & collaborations
Collaboration
What I can help with
Bring me in for a single system, a quick prototype, or an ongoing collaboration.
Gameplay systems
Movement, combat, camera, and the game feel that ties them together.
Prototypes
Fast, playable proofs of concept to test an idea before you commit time and budget to it.
Tools & editor scripting
Custom Unity tools and pipelines that save your team hours of repetitive work.
Content & collaborations
Devlogs, breakdowns, interviews, and podcasts about how games are built.
Developer facts
- Experience
- 6+ years shipping games
- Reach
- 50M+ installs · 1M+ MAU
- Based in
- Da Nang, Vietnam
- Now building
- It’s Breaking Out
- Weapon of choice
- Unity + C#
- Languages
- C#, English, Russian
Selected work
Projects I’ve worked on
Games I’m building now, plus the titles I’ve shipped across studios.
Newsletter
Get notified about new work
Drop your email and I’ll let you know when I ship a new game, release a devlog, or have something worth sharing. Rarely, and never spam.
Have a project, role, or idea in mind?
Whether it’s a one-off system, a prototype, or a longer collaboration, if you have something in mind, I’d love to hear about it.