Greater Games ENDE
O-Nio and Goldy Princess Punzel InvestNuts squirrel A lich from LICH

We make Vollkornbrot* games.

We're a small, high quality studio with a German HQ and international collabs. We make interactive products that are A) worth making, B) fun playing and C) good looking.

Explore our gamesMeet the studio
Recognised for
2026Uuugh – False Play
2021InvestNuts
Quality sealTrash Monsters* · Uuugh
2016Trash Monsters*
Research
Falling Walls Lab Karlsruhe3rd place 2021HEYA
2020Kubun
Currently in development

O-Nio!

O-Nio and Goldy

A cataclysmic clash of the gods shattered the world. Grab your pickaxe, rescue your vegetable friends and rebuild Centgard, one shard at a time.

Demo out now · premiered at gamescom 2026
Get it on Google Play iOS beta onTestFlight
Join the Discord
O-Nio and Goldy
Our games

Our Wholegrain selection: fun texture, meaning in every bite.

Uuugh – False Play
Serious Play Award2026
Impact game · Ulm University Hospital

Uuugh – False Play

Play the wolf in the rabbit mask, and learn to spot manipulation in real life.
InvestNuts
TOMMI2021
Impact game · for VisualVest

InvestNuts

Plant nuts, weigh risk and reward, and learn how investing works.
Trash Monsters
GIGA-Maus2016
Impact game · by Bunny & Gnome*

Trash Monsters

Sort trash with charismatic monsters, adapted for more than 20 towns and districts.
O-Nio!
Mobile · demo out now

O-Nio!

Grab your pickaxe, call on the gods and rebuild a shattered world.
Punzel
On Steam

Punzel

Ever wondered what happens on the other side of a Mario-like?
LICH
Card game, 2–4 players

LICH

A darkly funny deck dealer: summon liches, outwit your friends, done in 20 minutes.
Empires Connect
Board game, 2–4 players

Empires Connect

Four peoples invest in each other to build one shared castle.

 [I wanna be here] Your game could be next! Talk to us →

Swipe for all seven games

Beyond games · UX & research

Making knowledge playful

Game design thinking works outside of games too. These tools grew out of Greta’s research on how people navigate, sort and remember information.

Kubun
Research tool · rebuild in progress

Kubun

A playful way to navigate huge databases. The heart of Greta’s PhD at KIT.

IDEENSTARK 2020
HEYA
Visual bookmarking · prototype

HEYA

Breaking the wall of 1000 tabs: your bookmarks as a room, because visual spaces help us remember.

Falling Walls Lab Karlsruhe certificateFalling Walls Lab Karlsruhe
3rd place, June 2021
Serious games

Every serious game we ship wins awards. And keeps its players.

Most serious games are research projects that disappear the day the funding ends. Ours get published and thrive: Trash Monsters has been sorting trash with players since 2015, and like InvestNuts and Uuugh is still being played every day.

Want in? Work with one of the BEST SERIOUS GAME STUDIOS in Germany.

International Serious Play Award
International Serious Play Award2026 · Uuugh – False Play
GIGA-Maus
GIGA-Maus2016 · Trash Monsters*
RAL-Gütezeichen Serious Games
RAL-Gütezeichen Serious Games2023 · Trash Monsters*
IDEENSTARK
IDEENSTARK2020 · Kubun
Falling Walls Lab Karlsruhe
Falling Walls Lab Karlsruhe2021 · HEYA, 3rd place
Partners

Games for people who want to change something

We have made games with a university hospital, a digital investment company and more than twenty municipalities. We bring research on what makes learning games work, and the craft of making them fun.

How?
  1. 1 · We learnAbout 1. your topic, 2. your audience, 3. what should change.
  2. 2 · We prototypeA playable first version, early but sturdy.
  3. 3 · We testWith the people it is for: schools, clubs, clinics.
  4. 4 · We release & adaptLaunch, then versions for further partners.
Worked with

AWRRW, Stadt Zürich and Stadt Karlsruhe: Trash Monsters, a game by Bunny & Gnome*. KIT and Cologne Game Lab: research and teaching.

Greta Hoffmann
Studio

Greta Hoffmann and her crew

Greta has been making games that teach since 2013, from waste-sorting monsters to financial literacy for squirrels. She is Professor of Game Design at the Cologne Game Lab (TH Köln), holds a PhD from KIT on game design for learning, and built an open ontology of 591 game design elements along the way.

Each game has its own crew. Regular collaborators: bitowl (main programmer), Knaddersound – Mathilde Hoffmann & Felix Barbarino (sound and music), Madelaine Benda (project management), plus freelancers and interns.

Meet the crewMore about Greta
Oil painting of a loaf of bread on a wooden board
Painting: AMEI Hoffmann
Our wholegrain manifesto

Fun texture. Meaning in every bite.

As Germans, we know our breads.

Every bite rich and rewarding. No coating needed.

Vollkorn bread fills you up and still tastes great. Good games should too.