Aviation is a flight simulator meant to be somewhere in between accurate but complicated simulators and simple toy simulators that don't provide any level of realism. It currently features a non-linear flight model, a configurable atmosphere and sky model, and a CLOD triangulation engine for the terrain. Currently Aviation allows you to fly around in an area of around 600 square kilometers centered around the Columbia river. It can be easily extended to implement combat or air race scenarios, for example.
CorsixTH is a clone of Theme Hospital. As computers evolve, we risk losing some classic games. Bullfrog's Theme Hospital, published in 1997, is a classic simulation game, but getting it to run natively on modern operating systems is getting progressively harder. CorsixTH aims to reimplement the game engine of Theme Hospital, and to be able to load the original game data files. This means that you will need a purchased copy of Theme Hospital, or a copy of the demo, in order to use CorsixTH. After most of the original engine has been reimplemented, the project will serve as a base from which extensions to the original game can be made.
Ditchers is a multiplayer action game where underground tanks use a variety of weapons to find and destroy each other. Tanks dig tunnels in the soil with a limited supply of energy that can be refilled only in homes (as well as health). the GUI is controlled mainly by mouse, while gameplay is controlled only by keyboard. It is not difficult to create your own maps or to draw your own tank. The game supports split-screen, network games, and artificial players whose intelligence is programmable in the Lua scripting language. The game is inspired by Tunneler.
RoseThorn is a cross-platform library for 2D and 3D games running on GNU/Linux (and possibly other Unix-like OSes) and Windows. Features include: hardware accelerated 2D and 3D rendering; Ogg and WAV Sound support with OpenAL; Lua scripting; BMP, JPEG, and PNG image loading and saving (from screenshots); easily created and modified user interfaces with XML and CSS, combined with Lua event handling; separate 2D and 3D libraries; support for multiple fonts in both TTF and bitmap formats; support for OBJ, 3DS, MD5, and RTM model formats; skeletal animation (a work in progress); support for UDP and TCP networking; thread and mutex support; a Simple Shader API; 2D animated sprites; and some basic cryptography support. There is simple event management, with key/mouse bindings easily customized from the in-game console, config file, command line, or GUI.