GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10. Some of the activities are game oriented, but nonetheless still educational.
Library for manipulating hexagonal grids. Supports arbitrary areas and paths. Routing algorithms: find best path, find movement horizon. Output as SVG - which you can easily convert to PNG or JPG. Interface from C++, Python and JavaScript.
Move your armies between territories in a board and dispute territories through 2-D artillery simulation. Soundtrack by Stabilizer (http://www.myspace.com/stabilizer), every track is used with their permission.
Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.