Games specifically made for the iPad, and specifically made for two players sitting next to each other.
A very easy video-messaging app and site (on iPhone & email, Android planned). Created with Niko & Andreas.
Explore and search 450,000+ covers, from comic books to classic magazines and more.
Featuring over 100,000 old print ads to explore.
Dozens of easy to understand but challenging games.
An overview of easy-to-reference root world problems which, when solved, help us solve other problems.
Give it a try, it is best experienced rather than explained. Co-created with Nikolai.
Enter your birth year to find out.
A drawing of a face mutates based on your picks. The resulting images can be freely used anywhere. (Also see: Mutating Pictures.)
Sit back, relax, and give it a try – draw your infinite painting.
... as a superhero? Take the test and get yours out of over 100,000 hero images!
Watch 100s of random films to laugh, think, cry or clap. (Also see: Random App Videos.)
You draw an image to get another random image back. Co-created with Dominik. Simple but fun.
Help Karate Girl get revenge in this iPhone & iPad game with fun physics and a generated random world!
Get creative in this relaxing iPad toy and casually build machines driven by gravity, and full of color and sound.
Create the place of your dreams in this iPad app... with full dragging freedom if you want to play out your stories within it!
You and a friend share an iPad to talk not by speaking... but by typing pictures!
A photo comic showing Sally and her gadgets & brainy toys.
A fast-paced, physics based 2-player game in which the player with the higher standing tower wins.
A two-player iPad game in which you help the fobbles stuck in skywood escape!
An iPad game for 2 where you build shops, cafes, museums and other locations trying to lure in the most citizens.
In this iPhone app co-created with Mike, snap a photo or load any picture from your album... and see it being painted right before your eyes!
A news blog & community that ran for 7 years since 2003, 80% about Google. Also check out my two books about Google.
... being a mostly correct history of the adventure game classics by Lucasfilm, Sierra and others, from the pages of Wikipedia.
YouTube videos set up to help you learn the Chinese language, co-created with Yinxue.
Read, search or print classic public domain books online.
QML, created in 2000, is a framework and editor to create Choose Your Own Adventure games.
Netpadd is an open source text editor I use for my writing and coding, the new version of which is browser-based.
Site 1, 2, 3. W/ Alex. Basic. CMS in 2001. Caricature 1 2 3 4 5 6 7 8. Her. 1 2 3. Her in '90, Piazetta '95, Vermeer, Charannes, Stubbs, Keown '93, Jr. Mongar & Arthur I II III IV, 1 2 3 4 5 6 7 8 9 10 11 12. 3D 1 2 3 4.
I'm Philipp Lenssen from Germany, have lived here, in China & elsewhere, and like to write, report, program, create games, apps & sites, design & draw. Address: Rotebühlstr. 164, 70197 Stuttgart. Email
