Every number that governs this simulation is taken from the historical record of Apollo 13 (April 11–17, 1970). This is not a story "inspired by" the mission — it is the mission's own arithmetic, running live:
Unlike historical archives that let you observe Apollo 13, this simulation puts you in command. Your decisions — not history's — determine if the crew survives.
| LM DESCENT BATTERY CAPACITY | 2,181 AMPERE-HOURS |
| CO2 IMPAIRMENT THRESHOLD | 15 MMHG PARTIAL PRESSURE |
| CO2 FATAL THRESHOLD | ~30 MMHG |
| CREW WATER RATION | 6 OZ / MAN / DAY (1/5 NORMAL) |
| O2 TANK 2 EXPLOSION | GET 055:54:53 |
| CABIN TEMPERATURE | FELL TO 38°F |
| CREW WEIGHT LOSS | 31.5 LBS COMBINED (LOVELL: 14) |
| O2 LEFT AT LM JETTISON | 28.5 LBS |
| LM DESIGN RATING | 2 CREW × 2 DAYS — CARRIED 3 × ~4 |
| SPLASHDOWN | GET 142:54:41 |
Every crisis event fires at its real Ground Elapsed Time. The burns, the mailbox parts list, the sun-check alignment, John Aaron's reversed power-up sequence, and the words spoken on the loop are drawn from the record.
SOURCES: NASA Apollo 13 Mission Report & mission details; NSSDC Apollo 13 chronology; Apollo 13 Review Board (Cortright) Report; mission air/ground transcripts. Built for Hack Club Stardance. Open source under the MIT license.