Games · Apps · Web development

I make games & apps
— and I build your website too.

MT3K is Mondo's studio in Puerto Rico: games with boricua flavor, homegrown tools, and fast, secure web development for clients.

See the games Services →

iOS Android Vue Laravel Astro Security

SECURE BY DEFAULT

Available for projectsReply within 24h

My games

Made here, for the crew

Pa'lante

Public beta

Daily step race with your crew. Walk, throw a chancletazo and win.

See the game TestFlight (beta)

Impostor Boricua

On the stores

Party game: find the impostor in your crew.

See the game App Store

El Tranque PR

App Store · Android in testing

Puerto Rican domino scoreboard and game.

See the game App Store

See all games →

Own projects

Tools and apps I build

Schedule Tool · Vue

Fast, responsive weekly scheduling system for teams.

See more →

MT3K Mac Tools Desktop app · Swift / macOS

Native macOS utility to set up your Mac: install curated apps and CLIs, manage Homebrew, voice dictation and security hardening — all in one clean interface.

See more →

MT3K Gaming System Retro console · $99

Handheld retro console, configured and tested: thousands of classics ready to play, delivered in Puerto Rico.

See more →

Collaborations

With Invisionnaire Studio

Full Stack Developer · Invisionnaire Studio · 2019–today

Building websites, web apps and mobile apps with Invisionnaire Studio since 2019. Some highlighted projects from that collaboration:

GameRoulette — discover your next Steam game with the roulette

GameRoulette with Invisionnaire Studio

Don't know what to play? Connect your Steam and let the roulette pick your next adventure — ~230K games to discover, plus Steam deals.

Next.jsSteamIGDB Visit gameroulette.io →

SupaCollectors — Pokémon card browser with 20,000+ cards

SupaCollectors with Invisionnaire Studio

Browse and organize your card collection across 10 TCGs. iOS/Android mobile app in development.

PokémonLorcanaOne PieceYu-Gi-Oh! Visit supacollectors.com →

Services

Need a website or an app?

I also build for clients: landing pages, online stores, apps and security — with clear pricing from $79.99.

I teach what I build

Handhelds and gaming tech, AI agents and the apps I develop — real tutorials and experiments on my channel. Plus on Patreon: my compiled apps, ready to install.