Chivalry: Medieval Warfare was already silly enough with those slings and its online gameplay. But it just wasn't enough for modders. Here's Crustacean Soup's Giant Slayer mod that adds overpowered giant knights to the game.
The rules are simple: Everyone starts at 60 per cent normal size. After every kill, your size, your health and your damage increases by 15 per cent. So it won't take too long to become a giant knight who can easily step on other players.
Here's gameplay footage. Absolutely terrifying.
Giant Slayers [Steam Workshop]