Dead Ball Project vol. 3 is Deadball-P's fourth album. It consists of 19 tracks, with tracks 8-9 being bonus tracks.
The bonus tracks are split into three parts: Bonus Tracks Part1 -デP提供曲- (-De-P Teikyō Kyoku- / De-P Provides the Songs), for tracks 8-10, Bonus Tracks Part2 -デPたん2 OST- -De-P-tan2 OST-), for tracks 11-16, and Bonus Tracks Part3 -DENPA-, which consits of the last three tracks.
The album mainly features Hatsune Miku and Megurine Luka, except for tracks 11, 12,15, and 16, which are instrumentals.
It is available for purchase on KarenT.