The latest installment of Tomb Raider: The Final Hours explores the process of last-minute quality assurance before the game was finalized and sent to certification in the weeks preceding its release on March 5.

The video, which is the first of two parts of the series' conclusion, showcases the kind of stress that QA teams undergo during this period. In addition to ensuring the game is as free of bugs as possible, those teams provide feedback from players to ensure the title's dramatic moments hit all the right marks. An entire section of the dev team — the OMS (or, Oh My Shit) group — is dedicated to that process.

Crystal Dynamics global brand director Karl Stewart also describes the complications of bringing in a test audience to the studio, parts of which are blocked off as Crystal Dynamics works in secret on its "next big thing."

Check out the video above, and stay tuned for the second part of the Final Hours finale.