In March 2007, Rockstar revealed the first trailer for Grand Theft Auto 4, which prominently featured a boat docking at a ferry terminal. When the actual game launched a year later, the terminal was still there, but the ferries themselves were nowhere to be found. Fans have wondered for years why they were cut from the final game, and now one of the open-world game’s original developers has revealed the answer.”It wasn’t really because of performance,” former Rockstar technical director Obbe Vermeij reveals on Twitter. “It’s more that they were causing other issues with physics (cars sitting on a boat). As well as people queuing and getting on and off. They were more trouble than they were worth.”The Liberty Ferry Terminal first appeared in the “Things Will Be Different” teaser trailer that introduced the world to GTA 4, and it got a fair amount of notice as one of the few concrete things anybody had seen of the game. It’s not as if the cut content caused any notable backlash at the ti…