App Name: Warhammer 40K Terrain Generator



Features:

1. Generate button: Generates random terrain placements on a 6x9 table based on the selected terrain theme.

2. Terrain Theme button: Allows users to select a specific theme for the generated terrain placements (City, Forest, Desert, Swamp, Grasslands, Volcanic, Snow, etc.).

3. Randomization: Each time the Generate button is pressed, the app will generate a unique arrangement of terrain based on the selected theme.

4. Terrain Types: The app will include the following terrain types for placement:

   a. Wood

   b. Building

   c. Hill

   d. Obstacles

   e. River

   f. Monument or crag

   g. Ruins

   h. Scrub or boulders

5. Visual Representation: The app will display the generated terrain placements on a virtual 6x9 table, using icons or symbols to represent each terrain type.

6. User Interface: The app will have a user-friendly interface with clear buttons for generating terrain and selecting themes. Additionally, there will be an area to view the generated terrain placements.



Instructions:

1. Launch the Warhammer 40K Terrain Generator app.

2. Press the Terrain Theme button to select a specific theme for the generated terrain placements.

3. Press the Generate button to generate a random arrangement of terrain based on the selected theme.

4. View the generated terrain placements on the virtual 6x9 table.

5. Repeat steps 2-4 to generate different terrain placements or change the theme.

6. Use the generated terrain placements as a reference for setting up your Warhammer 40K game table.