Kai Hartmann Games

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Games: 3

Total installs: 1.4K

Latest release: Apr 18, 2026

How this studio operates

Carrier title Einstein’s Riddle – Logikal holds 99% of the studio's installs — a one-game studio
Hit rate 0% of launches reach 100k installs (0 of 3 at least 30 days old)
Release rhythm a new game every ~2.4 years on average
Maintenance 0 of 3 games updated in the last 90 days · last update 131 days ago

Game	Style	Rating	Installs	Released
Einstein’s Riddle – Logikal	Nonogram / Logic	—	1,000+	Aug 2, 2023
Frapples	Casual	—	10+	Jun 21, 2021
Hirnly – Brain Training	Other	—	5+	Apr 18, 2026