It might take you a minute to realize it, but the video above is of a Grand Theft Auto IV mod, not Ubisoft's recently released Watch Dogs.

　　Created by GTA IV modders ac.amir and JulioNIB, the Watch Dogs IV script mod doesn't only make GTA IV look like Watch Dogs with an Aiden Pearce character model, it also adds many of his hacking abilities to the game. As you can see in the video, the mod allows you to hack traffic lights to cause car accidents, raise roadblocks, and tap into the Liberty City's surveillance cameras to spy on people. It even implements a similar-looking user interface.

　　Other Watch Dogs features the mod adds include the ability ride on top of trains, listen to police scanners, and hack ATMs to spit out cash and draw people's attention. For a full list of what the mod includes, known technical issues, and instructions on how to install it, head here.

　　If it's Watch Dogs itself that you're interested in modding, you should check out the final release of Frederico "TheWorse" Rojas' mod, which introduces several new changes, including tweaking rain, the bloom effect during storms, and the game's camera.

　　GTA IV modders have been able to do some pretty amazing things to the game on PC including significant graphical improvements. It will be exciting to see what modders come up with once GTA V launches on PC, Xbox One, and PlayStation 4 this fall.