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◈ JUSTIN’S
GAME LAB

INDEPENDENT GAMES · PRIVATE TESTING

Our games. Your next adventure.

Discover Traffic Puzzle and Viertelwerk. Find information about our games and get help — invited testers also get access to protected Android releases.

Explore games ↗
Traffic Puzzle concept art, not gameplay

Games from the Lab

In development
Concept art: Traffic Puzzle

PRIVATE ANDROID TEST

Traffic Puzzle

A tactical traffic puzzle with hand-built city levels. Study junctions, manage traffic flow, and keep vehicles moving with carefully chosen interventions.

View game →Concept art · not a gameplay screenshot
Concept art: Viertelwerk

PRIVATE ANDROID TEST

Viertelwerk

A business simulator about decisions, growth, and building your own company. Start small, understand your customers, and develop your business step by step.

View game →Concept art · not a gameplay screenshot

PLAYTEST · ANDROID

Help us build better games

We are not accepting new tester applications right now. Existing approved testers can still log in.

Tester applications currently closed

PLAYTEST · GAME LAB

How testing in the Lab works

Explore the games

Explore the game pages. Images are concept art; actual gameplay captures will be added when available.

Our games →

Access after approval

We are not accepting new tester applications right now. Existing approved testers can still log in.

Access & availability →

Test & contribute

Approved testers get protected Android releases and can report bugs, confusing controls and ideas.

Testing help →

Development news

Private testing is underway. Confirmed development news will appear here when it is ready.

Questions about our games?

Installation help, update questions, or a new idea: find help and the right contact here.

Open help & contact