CAEplex

Finite elements in the cloud right from your browser

FeenoX:

A free no-fee no-X uniX-like finite-element(ish) computational engineering tool

Libre Blackjack

A free Blackjack back end inspired by GNU Chess.

Libre Blackjack is a blackjack engine that emulates a dealer, deals (digital) cards and understands plain-text commands such as hit or stand. The basic idea is that one or more players can talk to Libre Blackjack either in an interactive or in an automated way