: The "fix" in the filename (fix5) often addresses "solid" object issues where players might clip through walls or characters might get stuck in the environment.

: The "fix5" iteration specifically targets bugs found in earlier builds (like fix1 or fix4 ) to ensure the demo's features are "solid" or stable for play.

: New updates to the game often introduce or refine "solid" physical interactions between characters and the environment, which is a core mechanic of this specific genre of game.