kmos is a python framework suitable for fast setup and evaluation of lattice kinetic Monte Carlo models. It basically allows you develop your model with as little coding a necessary and you can make nice movies, too. Please check out the documentation and the paper (paywall).
wikiexplore is a single-page app that helps exploring one’s geographical environment by leveraging the power of OpenStreetMap and Wikipedia. (Give it a second to load initially.)
Castep ASE Calculator
The Castep interface is a python module that was initially developed with Joerg Meyer, who wrote most of the parsing, to leverage the awesome functionalities of the Atomic Simulation Environment with the plane-wave pseudo-potential DFT Code CASTEP. It has been merged into ASE and received maintenance from different people. Secret sauce: keywords are processed from invoking CASTEP binary so the interface can automatically deal with newly implemented features in CASTEP Code.