SCP: Containment Breach 2 builds its horror around a breach inside an SCP Foundation facility, where players can take on roles ranging from test subjects and scientists to guards, MTF operatives, and SCPs. Its premise pairs a suspense-focused setting with danger around every corner, while decisions shape the path through the facility and the effort to survive.
Story Mode follows a Class-D test subject trying to escape during the breach. Players can approach that story alone or in co-op, encountering dangerous SCP entities, navigating corridors, uncovering secrets, and facing multiple possible endings. The emphasis on choices and survival gives the single-player and cooperative formats a shared narrative frame rather than making the facility merely a competitive arena.
PvP Breach Mode shifts attention to competing roles and player interactions: participants may cooperate, form alliances, or betray one another, with randomized map generation making each playthrough different.