Mats Dirk Doornhein
Creative Developer
Flop 'n Drop
Flop 'n Drop is an endless platformer game where you play as a fish descending into the depths. Make sure you keep landing on platforms to avoid taking fall damage. There are a dozen unique and interesting biomes to see on your way down. All with their own dangers and excentricities.
Flop 'n Drop is made in Unity with C#. The game was made for the Game Design & Development Minor at Hogeschool Rotterdam. The game is made for Mobile (specifically android) and can be downloaded from Itch.io or the google playstore.
You can download it from the playstore here: Flop 'n Drop Download
Or go to the Github Repository here: Flop 'n Drop GitHub Repo
Programming: C#, Unity
Release Date: November 5th 2025
Reef Keep
Reef Keep is a serious game that aims to tackle the issue of the deconstruction of marine ecosystems. In Reef Keep you manage the ecosystem of the Dutch Wadden Sea, here you place plants & rocks to attract different kinds of fish and other marine life.
Reef Keep is made in Unity with C#. The game was made with the SDG 14 Life below water in mind, specifically target 14.2 "Protect and restore Ecosystems". The game is made for PC and can be downloaded from Itch.io.
You can download it on Itch.io here: Reef Keep Download
Or go to the Github Repository here: Reef Keep Github Repo
Programming: C#, Unity
Release Date: June 26th 2024
Ons Land
Ons Land (translated to Our Land) is a serious game that aims to inform a younger generation of the importance of ecological farming. In the game you get your own plot of land on which you can choose to cultivate a variety of different crops. After harvesting, the player can process these crops into various products to sell on the market. With the money this earns them the player can buy more land or a variety of crops.
Ons Land is made in Unity with C#. The game was made for a dutch ecological preservation group called "Land van Ons" (translated to Land of Ours). The game is made for mobile and can be downloaded using the APK listed below.
You can download it from a dedicated website here: Ons Land Download
Or go to the Github Repository here: Ons Land Github Repo
Programming: C#, Unity
Release Date: January 16th 2024
Spooked Out!
Spooked Out! is a dungeon crawler where the order you find the rooms in is random each run. There are multiple secret bosses you can find by exploring some of the rooms to entice the player to explore. When beating a boss you can get upgrades like more health, bouncy bullets or a faster walking speed! Use all your skill & power ups to beat the final boss and all of his minions!
Spooked Out! is made with the ExcaliburJS engine, a game engine made for JavaScript to be played in your browser.
You can play it directly in your browser here: Play Spooked Out!
Or go to the Github Repository here: Spooked Out! Github Repo
Programming: Javascript, ExcaliburJS
Release Date: June 28th 2023