01, SYSTEM CONTROL: 1 key
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02, HUMAN BBQ: 3 keys
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03, POWER CONTROL: 3 keys
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04, WORMHOLE: No keys
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05, HANGER: 3 keys
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06, OPEN SEASON: 3 keys
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07, PRISON: 1 key
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08, METAL: 1 key
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09, STRONGHOLD: 2 keys
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10, REDEMPTION: 2 keys
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11, STORAGE FACILITY: 2 keys
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12, CRATER: 2 keys
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13, NUKAGE PROCESSING: 3 keys
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14, STEEL WORKS: 3 keys
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15, DEAD ZONE: No keys
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16, DEEPEST REACHES: 3 keys
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17, PROCESSING AREA: 3 keys
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18, MILL: 3 keys
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19, SHIPPING/RESPAWNING: 3 keys
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20, CENTRAL PROCESSING: 3 keys (blue key position varies by Skill level)
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21, ADMINISTRATION CENTER: 3 keys
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22, HABITAT: 3 keys
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23, LUNAR MINING PROJECT: 3 keys
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24, QUARRY: 1 key
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25, BARON'S DEN: 3 keys
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26, BALLISTYX: 3 keys
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27, MOUNT PAIN: 3 keys
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28, HECK: 3 keys
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29, RIVER STYX: 3 keys
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30, LAST CALL: 1 key
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31, PHARAOH: 2 or 3 keys (yellow key is missing in 1-player games)
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32, CARIBBEAN: 3 keys
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