The program also supports user modifications, which may replace the samples in the drum machine emulations and modify the GUI.

Source port, which is a user modification (mod).

Protocol libraries are available as open C code for user modification.

Many new gameplay features and possibilities for user modification were also added around this time, aiming to replicate the abilities of TTDPatch.

Their advantage is the presence of a wire wrap area found on some for user modifications.

Game players create user modifications (mods), which in some cases become just as popular, maybe even more popular, as the original game created.

This slight change in the N64's plastic casing made the connection to the Doctor V64 difficult to achieve without user modification.

Some games, such as Firaxis' Civilization IV, are built with user modification in mind and include numerous tools for game customizing.

Benchmarksim (BMS) being the premier team to take on the task of user modifications.

The rifles have had many sub-variations in telescopic sights, and smaller user modifications.