
Validate your game idea quickly with a working prototype that attracts investors.
A 30-minute call and, within 24-72 h, a report with what we would do:
We build playable prototypes for:
Mechanics validation (gameplay, controls, physics)
Proofs of concept (narrative, art, interaction)
Investor or client pitches (interactive demos)
Early testing (bug detection, balance, usability)

Our first commercial game, still in development. Hundreds of people have played it at fairs and events ahead of its launch.

A mobile game of short sessions that keeps gaining players. It is our most downloaded project.

Built in 48 hours, it won the Teruel Global Game Jam for its polish and ambition.

CEEI AragónOur incubator
AraDevPartners
TresLXClientPrototypes let you validate ideas before investing in full development, avoiding spending on unviable projects.
A playable prototype puts your idea in real players' hands, so you adjust the design based on what they do, not on what you assumed.
An interactive demo increases your chances of securing funding, a publisher or partners for the project.
You tell us about your case and we tell you frankly whether we are a fit. Free.
In 30 minutes we see whether we are a fit, what we would do and what it would cost. No commitment.
A playable prototype is a functional, simplified version of a game or interactive application, built to validate mechanics, test concepts and gather feedback before investing in full development. Prototypes let you iterate quickly, reduce risk and make sure the final product meets user expectations and business goals.
Want to take your prototype to market? See how we develop indie games .
According to its 2026 report, the median development time of projects built with Unity fell 77% between January 2022 and December 2025, from 91 to 21 hours.
It began in 2013 as a prototype built in one week for the 7 Day FPS Challenge. Its free browser demo drew so much attention that it passed Steam Greenlight in five days, and its Kickstarter raised more than 230,000 dollars in 2014.
What it has to prove and to whom: investors, players or your own team. We reply within 24-48 h and, after a 30-minute call, send you a written proposal within 48 h.
Before we start, we agree with you in writing on what the project has to achieve. If it doesn't deliver what we agreed when we hand it over, we refund what you have paid.
The goals and the terms of the guarantee are set out in the proposal and the contract.