| Add-on | What It Does | Size | |--------|--------------|------| | (by Alpilotx) | Replaces default 30m mesh with 10–20m resolution | ~100 GB | | Ortho4XP | Creates photoreal terrain from Bing/Google satellite images | Varies (1 TB+ for full world) | | SimHeaven X-World | Adds OSM-based buildings, forests, and roads | ~50 GB | | Airport Environment HD | Improves textures for 3D airports | 2 GB |

: Use the map interface to select the global regions you wish to install or update.

The complete scenery library covers most continental landmasses, though extreme northern regions (beyond 73°N) may be omitted to maintain detail .