OffSec Proving Grounds
Root hosted practice machines from OffSec and the VulnHub community
Proving Grounds is OffSec's hosted lab of practice machines. You start a dedicated machine, connect to it, work your way in and collect the flags. Play has machines designed by the VulnHub community, and Practice adds OffSec-designed Windows and Linux machines, including retired exam labs.
Freemium · Login needed · Browser · Intermediate
About OffSec Proving Grounds
It trains penetration testing on realistic targets and suits people preparing for OSCP-style exams.
It needs an account. Play is free, Linux only, with three-hour sessions. Practice costs $19 a month or $199 a year and gives unlimited lab time.
On Breakpoint since 25 Oct 2026.
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