Kitesarefun

Load two local STL files (or pick from a sampler), mix and morph them, export to STL (or OBJ).
Simple tool to view STL files plain or with Ambient CG textures.
Load an image → preview a 3D relief → make a few simple adjustments → export STL or OBJ
Draw with cubes, generate random forms, combine the two, and export your creation as an STL or OBJ file.
Quarterlies is a business simulation game about decisions, uncertainty, and time.
Simulation
Play in browser
Explore spherical equations as 3D forms, randomize them, and export STL files for 3D printing.
Perturb a vessel, export it, print it in 3D (STL)