GameSpot writes: "At some point in the four-and-a-half-year development process behind the engine that drives the gameplay in Red Faction: Guerrilla, all of the buildings fell down. Each time the developers would load up the latest build of Volition's long-awaited follow-up to the PlayStation 2 first-person shooter, all of the buildings would topple to the ground. After some careful investigation, the team found out that this wasn't some strange show-stopping bug that was bringing all of the game's structures down; in fact, it was the physics system acting exactly as it was supposed to.
In a game in which realistic building destruction is one of the primary foci, building physics play a huge role in Guerrilla. Once the physics had been implemented in the game, all of the buildings began toppling because they weren't built to the kind of architectural standards that would keep an actual building vertical in the real world. As a result, the developers had to go back and make sure that all of the constructs in the game were built on sound architectural concepts--that they stood up for themselves, in a manner of speaking. Once that problem was solved, it was back to the game's main mission: finding new and fun ways to bring those buildings to the ground by sheer destructive force."