The Net Yaroze (ネットやろうぜ Netto Yarōze?) is a development kit for the PlayStation video game console. It was a promotion by Sony Computer Entertainment to computer programming hobbyists in 1997. Yarōze means "Let's do it together!".
Priced at around $750 USD, the Net Yaroze (DTL-H300x) package contained a special black-colored debugging PlayStation unit with documentation, software, and no regional lockout. The user has to provide a personal computer (IBM-PC or Macintosh; NEC PC-9801 was also supported in Japan) to write the computer code, compile it, and send the program to the PlayStation.
Though it lacked regional lockout, the Net Yaroze console exists in three variations; one for Japan, one for North America and one for Europe/Australia. The Europe/Australia version boots in PAL mode, while the others boot in NTSC mode. There are further differences between the Japanese kit and the others; the manuals are in Japanese, the software for Japanese PCs is included, and the discs and access card sticker have different printing. The Japanese version is sometimes unofficially referred to as DTL-3000 rather than DTL-H3000.
The Net Yaroze was only available for purchase by mail order; but Sony also provided it to universities in the UK, France (EPITA), and Japan.