The Power Grid: BGG Promo Card Set was released in early 2011 as a bundle that gathers every promotional card ever printed for the classic Funkenschlag/Power Grid, plus a brand‑new addition: the Theme Park (Freizeitpark) card. The Theme Park consumes as much electricity as an entire city, so inserting it into a game adds a hefty new demand that can swing the resource race. The set includes seven cards – the Flux Generator (2008), the Transformer Station (2009), three Warehouse cards from 2010, and the exclusive Theme Park (2011) which replaces the standard “Step 3” card. Each card acts as an extra component that can be slipped into a regular Power Grid session, providing fresh bidding opportunities and network‑building choices. Since Power Grid’s core loop already revolves around auctioning power plants, buying fuel, and extending your grid, these promos fit like a glove, expanding the strategic palette without adding complex new rules. Players simply replace or add the cards as instructed in the accompanying sheet and continue with the usual 2‑hour gameplay, though the added demand may raise the tension at the auction table. The set is perfect for veterans who want more variety in the resource market or who love to collect every piece of Power Grid history.