From creator Andrew Garrison:
It's my reddit cakeday, and I just want to celebrate by giving away all of my games for free. I hope you enjoy them!
Here are my games (best games are listed first):
SimpleRockets- Build rocket ships with realistic physics and explore the solar system.
SimplePhysics- Design everything from tree houses to ferris wheels and then simulate your design with a realistic physics engine.
Dummy Defense- Protect your dummy from explosions, boulders, spiked walls, and more (using realistic physics, of course!)
BridgeBasher - Design a bridge and then destroy it. Oh, if you had not guessed, this one has realistic physics too.
SimpleRockets is my best game, so if you really like it, you should check out the subreddit to share your adventures and also learn more from the rocket science studs that hang out there:
http://reddit.com/r/simplerockets
Edit: To be clear, the free version of my games will not include new updates (unless there is some serious bug). The store page for these apps will be taken down tomorrow (or maybe Tuesday, not sure yet).
Physics + android + free = upvote