is a turn-based tactics game incorporating elements of roguelike gameplay. The player must execute espionage operations with a team of two from a covert agency in procedurally-generated levels to collect enough information to nullify an incoming threat.
The game is a turn-based tactics game with emphasis on stealth and espionage. In each playthrough, the player takes on the role of an agent handler for covert operations, and comes to learn that their agency is threatened within 5 days of game time. They have to perform various missions to defuse the threat before that time expires. This is done by performing various missions across the globe to retrieve information, valuables, and other espionage tasks, keeping cognizant of the amount of time taken for travel and missions within that 5 day period. The player selects 2 agents to perform these missions; should one agent die during a mission, they remain dead for the remainder of the runthrough, while if both agents die, the game is over. The mission details and location layouts are procedurally generated for each run through, featuring a variety of objectives, obstacles, and difficulty.
Missions are played out in a turn-based manner. Each agent under the player's control has a limited number of action points each turn that allow them to move, open/close doors, take out guards silently, or perform other covert tasks. Additionally, the play may need to collect power to be able to use a hacking interface that allows them to disable alarms and security cameras or remove locks on safes and doors. Once the player has completed their turn, any enemy forces move, and in most locations an alarm level is raised; with higher alarm levels, new security forces and threats will arrive, making the mission more difficult. Certain stations can let the player purchase upgrades or equipment for the agents to help in the mission, using collected in-game money obtains as part of their data collection. The objective in most cases is to collect as much covert information and make the agents' way to an elevator to complete the mission. The number of turns taken is then reflected on the time remaining in the 5 day countdown, while any collected intelligence and the like is used towards nullifying the threat. If the player does not collect enough information by the end of the 5 day period, the game is lost.
The game has a larger meta-game aspect, in that as they play and complete certain goals, they can unlock different agents with different skill sets or new default equipment to being missions with in future missions.