Rugby requires a much broader filed compared to football. In rugby, you have thirteen players to start the game, while in football, you only need eleven players. The way the players operate for both sports is also different, and rugby players can perform the role of attacking and defending when it is necessary. Football players, on the other hand, all have particular roles they must play during the game.
The rules in football are quite strict and rigid, and the way the ball moves on the field is also different. In football, players can only pass the ball in a direct forward manner. On the other hand, rugby players continuously move the ball in other directions, mostly backward and sideways.
The points between the two games are also different, as football is worth six points, while rugby is only worth four. In football, players only need to cross designated end zones to earn points, while making field goals in rugby is not typically worth the effort, since they will only receive one single location.