The promotional card *The Manhattan Project: Energy Empire – Missile Crisis* was one of the stretch rewards from the Kickstarter of the base game, later appearing in promotional packs. It implements a straightforward rule change that alters the game flow: the environmental row no longer scores. Instead, each time the UN marker moves, the player immediately gains 1 victory point. Afterwards, all three structure markets refresh. Until another Global Impact card triggers, players are prevented from advancing further on the UN track. Dice rolling remains, but the pressure increases: moving the UN marker can swing the game in a few turns. The card works with 2 to 5 players and keeps the game time between 60 and 120 minutes, like the base game. The experience becomes shorter and more tense, with quick decisions on when to deploy workers and when to roll dice. If you enjoy the *The Manhattan Project* series and want a variation that speeds up the pace, this card is a fun addition. It only requires the base game and the promotional card itself, so no extra components are needed. As it was a stretch reward, availability may be limited, but it can still be found on resale sites or in recent promotional bundles.