If you've spent any time on gaming TikTok or X lately, you've probably seen someone describe a game in a sentence and watch it appear, playable, a few seconds later. That's the pitch behind Tesana AI — a platform that turns text prompts into working 3D games without asking you to touch a line of code. It's part of a small but growing category of "vibe coding" tools for games, and it's picked up real traction: co-founder Johannes Vermandois told PC Gamer the service attracted around 10,000 paying customers in its first couple of weeks.
This review walks through what Tesana actually does, how the pricing and credit system works, what genres it supports, and what users have said about the experience so far — the good and the frustrating. It's written for anyone curious about trying AI game generation, whether you're a hobbyist who's never opened a game engine or a developer wondering if this is a legitimate prototyping tool or just a novelty.
What Tesana AI Is
Tesana is built by Johannes Vermandois (CEO) and Eric Heimer (CTO), and was shown publicly at the Game Developers Conference in March 2026. Under the hood, it runs on a proprietary model series called Muranyi — the current version referenced in the platform's own materials is Muranyi-3 — which converts natural-language descriptions of environments, mechanics, characters, and rules into structured game code. Tesana's own documentation states that this pipeline also draws on third-party AI services, including Claude, as part of the generation process.
The pitch is simple: type what you want, and the AI builds the game world, UI, and mechanics — collision detection, character movement, basic physics — all from that prompt. You can also upload reference images to steer the visual style, which is useful if you have a specific look in mind that's hard to put into words.
How It Works
- Describe your game. You write a prompt covering the setting, mechanics, and tone — for example, a cozy farming sim or a fast-paced FPS.
- Optionally add reference images. These help guide art direction and character design.
- Let the AI generate a playable build. The system produces a working prototype you can immediately play in the browser.
- Iterate through chat. You keep refining the game — asking for new areas, different enemy behavior, UI tweaks — by describing changes rather than editing code directly.
- Share or publish. Finished projects can be shared with others, and Tesana includes a community marketplace where users can discover, play, and remix games built by other people.
There's also a feature called Loop, which the company describes as an automated review-and-rebuild cycle: instead of stopping at the first draft, the AI checks its own output against a quality bar and reworks weaker parts before handing the game back to you.
Genres and Capabilities
Tesana lists support for a fairly wide range of genres, including first-person shooters, racing, survival and crafting, action RPGs, roguelikes, strategy and civilization-builder styles, and cozy simulation games. Higher-tier plans add the ability to import your own 3D models, audio, and sprites, which matters if you want a project that doesn't look like every other AI-generated demo.
Worth noting: the underlying builds appear to be Godot-based, since some paid plans specifically offer the ability to download the Godot source code behind your project — useful if you eventually want to leave the platform and continue development by hand.
Pricing and How Credits Work
Tesana runs on a credit system. As of this writing, the platform's pricing page lists a free tier to start, with paid tiers roughly structured around 2,500, 7,500, and 35,000 monthly credits at increasing price points, adding perks like commercial-use rights, watermark removal, custom asset imports, faster generation, and priority support at higher tiers. Subscription pricing on platforms like this changes fairly often, so treat these figures as a general shape rather than exact current numbers — check tesana.ai/en/pricing directly before buying.
Billing is usage-based rather than a flat per-prompt fee: credits are charged after a generation finishes, based on what the AI actually processed, not an estimate beforehand. You need a small minimum balance (around 25 credits) to start a new generation, and the company has stated it currently doesn't offer free daily credits, citing the cost of AI compute.
One detail worth flagging for anyone hoping to monetize a game built here: some plan listings mention eligibility to earn money based on views or plays of published games. The specifics of how that payout structure works aren't clearly detailed in Tesana's public materials, so it's worth confirming the current terms directly on their site before assuming a particular revenue arrangement.
What Users May Like
- No coding or game-engine setup required to get something playable
- Fast iteration — you can request changes conversationally instead of editing code
- A marketplace for sharing and remixing other users' projects
- Options to import custom assets and export to multiple platforms on higher tiers
- The ability to download underlying Godot source code, which gives you an exit ramp if you want to keep building manually
What Users Should Be Careful About
Reviews on the App Store paint a mixed picture. Some users have reported generations that didn't match their prompt at all — one described requesting a specific game and getting a blank gray screen with a barebones UI instead. Others have flagged confusion around the credit system, since you don't start with any credits and have to purchase them before testing the platform properly, which makes it harder to judge quality before paying.
There have also been complaints about broken support links — one reviewer noted a Terms of Service link pointing to a dead page — though the developer has responded to at least some reviews directly and offered credit refunds for failed generations.
Independent coverage has been similarly cautious. PC Gamer, which covered Tesana's GDC showing, noted that many of the example games on Tesana's own site looked like distorted versions of existing titles — recognizable in concept but rough in execution, describing one example as resembling "Skyrim if you took it out of the computer, stomped on it, and then smushed some of the pieces back in." The outlet's broader point was that while AI lowers the barrier to starting a game, actually making something polished and finished still takes real design work, something no prompt-based tool eliminates entirely.
Realistic Expectations
Tesana is best understood as a fast prototyping and experimentation tool rather than a replacement for traditional game development. It's genuinely useful for testing an idea, seeing a concept take physical shape, or building something playable to share with friends without any technical background. It's less reliable if you're expecting a launch-ready game straight out of a single prompt — expect several rounds of iteration, and expect some generations to miss the mark entirely.
Before You Sign Up
If you're considering Tesana, check current pricing and credit costs directly on their pricing page, since credit consumption varies by the complexity of what you're generating and rates can change. It's also worth reading the platform's current terms of service directly, given that some reviewers have run into broken or outdated links, and confirming exactly how the "earn money per view/play" eligibility works before you plan around it as an income source. Starting with a smaller credit purchase before committing to an annual plan is a reasonable way to judge output quality for your specific use case.
If you've used prompt-based creative tools before — AI video generators, AI image tools — the learning curve here will feel familiar: specificity in your prompts gets you dramatically better results than vague descriptions, and the first attempt rarely nails it on the first try.