keva planks tower demolition simulation done with blender 3D, blender game engine and bullet physics engine.
The keva planks building is cut but the tower does not collapse.
Tell me if you know an interactive simulation game where you can collapse towers.

When I saw Phymec's keva planks demolitions, I decided to make my own once, my favorites Phymec's videos are :
"Over 32000 planks ;-) Blender / Bullet Physics / SmallLuxGPU OpenCL" https://www.youtube.com/watch?v=143k1fqPukk
"KEVA planks round tower build and destroy using Bullet Physics Engine" https://www.youtube.com/watch?v=OBzBfhrjx5s
"3000 KEVA planks in slow motion (Updated) - Bullet Physics" https://www.youtube.com/watch?v=3Ilojin4vQ8
"Over 5000 KEVA planks building - Bullet Physics" - A little KEVA planks stress test with Bullet Physics engine. Total 5278 rigid bodies. Pretty solid. Same destruction from three different POVs.
https://www.youtube.com/watch?v=J9HaT23b-xc

Fun Physics news: Version 2.80 of Bullet Physics library (for developers) has just been released and it includes (amongst other new features) a preview of the GPU OpenCL accelerated rigid body pipeline which should be finalised for the upcoming version 3.0. Erwin has put up on his YouTube channel some real-time (!) technical tests with tens and even hundreds of thousands of rigid bodies. Open source software:
http://bulletphysics.org/Bullet/phpBB...
http://www.youtube.com/user/erwincoumans

This animation was created using Blender 2.62; physics simulation performed by the built-in Bullet Physics game engine. Open Source software:
http://www.blender.org
Animation rendered using the fast 100% OpenCL multi-core, multi-xPU (CPU, GPU, APU) accelerated path tracer SmallLuxGPU 2 / SLG 2 (using latest v2.0devel5); built-in procedural sun and sky environment lighting; using real-time interactive SLG Live! mode in Blender. Open Source software (part of LuxRays):
http://www.luxrender.net/wiki/SLG