Pigeon game is a branch of RPG game, which originated from a game named "rogue" and was jointly developed by Michael Toy and Glenn Wichman on UNIX system. Then, in order to pay tribute to these two great gods, a series of similar or similar games derived from them are called the pigeon game (pigeon game).

The pigeon game was clearly defined and named "Berlin Interpretation" in 2008, which has the following characteristics:

1, random maps, scenes, props and monsters are randomly generated, and each opening is unique and cannot be backed up.

2. One-way process archiving can only read the current progress, and can be emptied after reading, not SL.

3. One-off life characters generally disappear forever after death, which is also the feature and charm of the meat pigeon game.

4. The nonlinearity has certain rules, but the degree of freedom is high, and all means can be taken to solve problems.

5. Simple pictures. To commemorate the meat pigeon, many meat pigeon empire games will use ASCII characters (American Standard Code for Information Interchange).

6. A variety of complex system pigeon Reich games contain more elements than ordinary games, and each element will have a greater or lesser impact on the game. It is more challenging, contains more elements, has higher repeatability and playability, and is generally more affordable.