Terraforming Mars Prelude Print Patched May 2026

If you have this promo pack, you likely have updated versions of these corporations. Here is how they differ from the base game versions:

| Card Name | Original Printing Issue | Patched Version Fix | |---------------|----------------------------|--------------------------| | Donation | Gave 10 MC, no downside. Too strong relative to other options. | Changed to +7 MC (still strong but less dominant). | | Mining Operations | Text said “Increase energy production 2 steps” – ambiguous if 2 separate production or +2. | Clarified: +2 energy production. | | Metal-rich Asteroid | Gave 4 titanium production. Overpowered in early game. | Reduced to +3 titanium production. | | Research | Drew 3 cards, no cost. Too efficient. | Changed to “Draw 3 cards, pay 3 MC.” | | Great Aquifer | Allowed placing 2 ocean tiles anywhere, often used to steal placement bonuses. | Restricted: 2 oceans but must be placed on reserved ocean spots (no bonus stealing). | | Supplier | Gave 2 steel production, 2 titanium production, 2 energy production, 2 plant production. Massive early game. | Reduced each to +1 production of each type. | | Galilean Mining | Gave 2 titanium production and 1 MC production. | Clarified wording on titanium production stacking. | | Polar Industries | Original wording unclear if heat production increase per generation. | Reworded to “Increase your heat production 1 step. Place 1 ocean tile.” | terraforming mars prelude print patched

Additionally, the original rulebook incorrectly stated that Prelude cards could be played after seeing starting corporations and before initial production, but some tournament rules required clarification. The patched version’s rulebook explicitly states: “Reveal your corporation, then play Prelude cards, then proceed to generation 1 production phase.” If you have this promo pack, you likely

When purchasing online, look for listings that explicitly say "Latest Printing" or "Updated Edition". On Amazon, check the "Date First Available" – anything after January 2022 is likely patched. Better yet, buy from board game specialty stores like Game Nerdz, Miniature Market, or Cardhaus and ask their customer service about the print run. When purchasing online, look for listings that explicitly

The original Prelude card IO Research Outpost gave you a titanium production and a card draw. In a game where titanium is premium space-bucks, this was ridiculously efficient. If you drew it, you took it. End of story. It made other Prelude cards feel like consolation prizes.