Octaspire Crates! is a scriptable, skinnable, extensible, and relocatable 3D action puzzle game. All the missions, game entities (or crates), game states, and configuration of the game engine are implemented as plain text Lua-scripts. So, if you know Lua, you can write new game entities, game states, missions, and levels with any text editor, without any special development tools. New skins can be created with any image editor that can save .png images, dropped into a new subdirectory under the resources/textures directory, and changed in the configuration file config.lua. Crates has also its own (simple) implementations for all the different container classes it needs (like vector, string, and so on) to keep the external dependencies fewer.
Wendland TD is a German Tower Defense like game. In this game, the player's goal is to stop a truck or train (you can choose between a street or rails in the main menu) by placing obstacles like garbage, cows, or other trucks on the road/rails. This game is only available in German, because it is related to events that are actually happening like this in Germany.
Fish Fillets NG is strictly a puzzle game. The goal in every of the seventy levels is always the same: Find a safe way out. The fish utter witty remarks about their surroundings, and the various inhabitants of their underwater realm quarrel among themselves or comment on the efforts of your fish. The whole game is accompanied by quiet, comforting music.