Jarome Luai, Alex Johnston, Matty Lees, Connor Watson, Brian To'o, Zac Lomax and Joseph Manu have signed with the PNG Chiefs.
Sean O'Sullivan is expected to become Chiefs player "008".
Under the NRL's 10-year, $600 million agreement with the Australian Government, players and coaches receive tax-free salaries.
The incentive was designed to attract players despite legitimate security and political concerns in Papua New Guinea.
Peters left Hull KR after four years in Super League to build the PNG club.
He won the 2025 Challenge Cup and Super League premiership, plus the World Club Challenge against Brisbane Broncos in February this year.
Peters told The Daily Telegraph he expects judgment and is focused on building the roster.
"No matter what, you're going to get judged. If we weren't getting anyone, we'd get judged on that. Now we're getting some high-quality players, and we're getting judged on that too."