Since 2007
Mario Universalis: where I learned the web
I launched Mario Universalis in high school, in 2007. My goal was to share my passion for the world of Super Mario. It was an opportunity to discover HTML and CSS through Le Site du Zéro. Almost twenty years later, Mario Universalis has grown into a small ecosystem, and I am still learning by building things around it.
Mario Universalis
Websites & tools
Websites, tools and other projects built around the world of Mario.
Main website
The original website, created in 2007. Today, only its games database is still updated.
Mario games mini-site
Discover every Mario game, with details and release dates.
Yoshi's Island: Boss Builder
A tool for generating custom boss images in the style of Yoshi's Island.
Bingo Direct
A tool for making and sharing predictions for upcoming Nintendo Directs.
Super Mario Bros. Wonder walkthrough
A complete walkthrough for finishing the game 100%.
Mario Kart World Guessr
A game inspired by GeoGuessr, set on the map from Mario Kart World.
GraphQL API
An open API for accessing Mario game data.
Social media & bots
A place to share news, anecdotes, memes and thoughts about Mario and Nintendo in general.
Twitter/X account
@MarioUnivRsalisThe main Mario Universalis account.
Bluesky account
@mariouniversalis.frFor anyone allergic to X, Mario Universalis is also on Bluesky.
“Happy Birthday Mario!” bot
A bot celebrating Mario game anniversaries every day on X and Bluesky.
“Nintendo RSS” bot
A bot that shares the latest Nintendo news on X from the official RSS feed.
Artificial intelligence
A place to experiment with AI as thoughtfully and responsibly as possible.
GPT Mario Universalis
A custom GPT that answers questions about Mario games.
Donjons & Koopas
A custom GPT that takes you through adventures where you are the hero in the Mario universe.
Toads Jailbreaker
A game inspired by Codenames where you team up with an AI to free the Toads while avoiding being eaten by Chain Chomps.
Learning with something to build.
Mario Universalis has always been my technical testing ground. After HTML and CSS, it gave me a real project through which to learn PHP/MySQL and then JavaScript, with several thousand visitors: in its early days, it was one of the first Super Mario fansites!
Today, the original PHP and JavaScript website lives alongside more modern projects built with React, Gatsby, GraphQL, and other technologies. Some parts are very old; others are less than a year old. The projects around Mario Universalis evolve alongside me.
A closer look at a few Mario Universalis projects.
I set myself the slightly crazy challenge of writing a complete walkthrough for Super Mario Bros. Wonder. Alongside sharing a free guide (with no ads!) that could help many players, I paid particular attention to its SEO. If you search for a French-language guide to the game, there is a good chance it will appear among the top five results!
To give Mario Kart World players a new experience, I created a web game inspired by GeoGuessr. The project found its audience, with YouTubers from the United States, Germany, and even Japan playing it!
