| 1: Mars City |
 1.38 Mo |
| 2: Mars City Underground: Union Aerospace Division |
 1.56 Mo |
| 3: Mars City: Union Aerospace Corporate Division |
 1.85 Mo |
| 4: UAC Administration: Union Aerospace Corporate Division |
 1.31 Mo |
| 5: Alpha Labs - Sector 1: Union Aerospace Science Division |
 1.64 Mo |
| 6: Alpha Labs - Sector 2: Union Aerospace Science Division |
 1.37 Mo |
| 7: Alpha Labs - Sector 3: Union Aerospace Science Division |
 1.09 Mo |
| 8: Alpha Labs - Sector 4: Union Aerospace Science Division |
 1.53 Mo |
| 9: EnPro Plant - Energy Processing and Storage |
 1.49 Mo |
| 10: Communications Transfer - Maintenance and Transfer Station |
 1.69 Mo |
| 11: Communications: Communications Central Tower |
 1.80 Mo |
| 12: Monorail Skybridge: Facility Transport |
 1.42 Mo |
| 13: Recycling - Sector 2: Waste Recycling Center |
 1.08 Mo |
| 14: Monorail: Facility Transport |
 1.17 Mo |
| 15: Delta Labs - Level 1: Union Aerospace Research Division |
 2.88 Mo |
| 16: Delta Labs - Level 2a: Union Aerospace Research Division |
 2.01 Mo |
| 17: Delta Labs - Level 2b: Union Aerospace Research Division |
 1.56 Mo |
| 18: Delta Labs - Level 3: Union Aerospace Research Division |
 2.22 Mo |
| 19: Delta Labs - Sector 4: Union Aerospace Research Division |
 453 ko |
| 20: Hell |
 1.30 Mo |
| 21: Delta Complex: Union Aerospace Research Division |
 815 ko |
| 22: Central Processing: Processing Distribution Center |
 1.55 Mo |
| 23: Central Processing: Primary Server Bank |
 992 ko |
| 24: Site 3: Analysis Facility |
 1.07 Mo |
| 25: Caverns - Area 1: Excavation Transfer |
 1.59 Mo |
| 26: Caverns - Area 2: Artifact Excavation |
 783 ko |
| 27: Primary Excavation: Artifact Dig |
 450 ko |
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