Eugen has spent his career around computers. A graduate of the University of Craiova’s mathematics and computer science faculty in Romania, he has worked as a computer engineer and competed as a professional gamer. But until a few months ago, he had never used an AI development tool. Not once.
“Rosebud is my first,” he told us.
His first project? It wasn't a prototype or a weekend jam game. Legion Hunters, a competitive turn-based strategy MMORPG, now live with a Coming Soon page on the Epic Games Store, launching this July, with Steam next on the roadmap.
The scope is staggering
Legion Hunters isn’t small. Players build a castle from 62 distinct buildings across 8 specialization trees, recruit an army from 164 unique units spanning 10 races, and battle through 118 world locations before taking their squads into ranked PvP with over 200 skills to mix, match, and counter.
There are two full combat systems (tactical manual control and high-speed auto-battles), plus guilds, seasonal leaderboards, a blacksmithing and loot system with 108 gear templates, and a live multiplayer backend running on Supabase.
This is the kind of feature list that normally comes from a studio. Eugen built it solo.
Going all in
Eugen isn’t a casual user. On heavy days, he burns through 7–8 million credits, iterating on everything from the hero talent matrix to combat runtime logic.
It hasn’t been frictionless, and he’s candid about that. Building at this scale means auditing AI-generated code and occasionally rolling back when things go sideways. When he added manual combat alongside his auto-combat system, the AI initially built a parallel skill system instead of reusing the existing one as a single source of truth. Untangling it taught him to be explicit about architecture up front. This was the kind of hard-won lesson that separates power users from everyone else.
“Overall I managed to get the game this far,” he says, “so it’s good.”
The ripple effect
Maybe the most telling part of Eugen’s story isn’t the game but rather what happened when his friends saw it.
His circle includes professional developers at major companies, working in TV software and security. They’ve all dreamed of making games. Watching Eugen actually ship one changed the calculus.
“Now that they see me doing it, they want to join,” he says. The group is now planning a team for bigger projects, all building on Rosebud.
Play it now
You don’t have to wait for launch: an early version of Legion Hunters is playable right now on Rosebud, and you can wishlist the full release on the Epic Games Store.
- ▶ Play on Rosebud: rosebud.ai/play/legionh
- ⭐ Wishlist on Epic Games: Legion Hunters on the Epic Games Store
- 💬 Join the community: Legion Hunters Discord
Want to build your own game with AI? Start creating on Rosebud.
Andi Bucescu
Andi is the Head of Marketing at Rosebud, where she writes about the intersection of AI, creativity, and brand storytelling. She explores how generative AI is reshaping marketing strategies and creative workflows, with a focus on making complex technology accessible and cutting through the noise of modern campaigns. Her perspective is informed by undergraduate research on effective social media content and consumer psychology.