Cypher is a medium difficulty Linux machine that can be exploited using a Cypher injection.

Checker is a hard difficulty Linux machine that involves exploiting BookStack, TeamPass and a custom sudo binary.

Titanic is an easy difficulty linux machine with a straight-forward path involving LFI and an ImageMagick vulnerability.

DarkCorp is an insane difficulty Windows box with a long path through multiple machines.

Cat is a medium difficulty Linux machine that requires exploiting multiple XSS vulnerabilities and a SQL injection.

BigBang is a hard difficulty Linux box that involves a LFI in a wordpress plugin and php heap exploitation.

EscapeTwo is an easy difficulty Windows box involving AD CS misconfiguration.

Backfire is medium difficulty linux box with a challenging foothold that requires combining two exploits.