The dastardly Dr Nogood has been running an underground gambling den in the centre of Letchworth. Inside there is a secret vault where he and his gang of thieves have been storing all their ill gotten gains and your team has been chosen to recover the stolen items. At 60 minutes the vault will fill with poisonous gas and that will be the end of you and the mission. Can you get in, get as much as you can and get out as close to 60 minutes as possible?
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Played: 22 Feb 2026Team size: 6Outcome: Successful escape!
What a fabulous game with so much to keep us busy but still work together. Haven’t done many rooms where you’re collecting the guns rather than trying to escape. This is based around collecting valuables from vaults. Lots of fun. We did have a small issue with one of the locks and I think we’d have done even more if hadn’t spent time on something (involved a dart board and a dart wasn’t in the correct place so we couldn’t get the right code) . Glad we did this room as a larger group (sometimes we play as a three and others with another 3) a really good mixture of puzzles and lots to keep you busy.
This was a fun game and exciting to be trying to get the most money possible rather than trying to beat the clock. The set was great and puzzles excellent! We misunderstood some safety advice (to stop us bashing our heads) so I think we could have solved more puzzles had we not been so diligently keeping cupboards closed but it was still very fun and the hosting is great! I love all the games this company creates!
We were all on a bit of an adrenaline high when we finished this one; it definitely kept us running around like mad and operating on all cylinders. Mobbery is the most challenging game at Agent Brains; though, as mentioned, there definitely are some more accessible puzzles, and less experienced players could still have a great time just getting as much as they could. (However, for real beginners, I would suggest starting with The Lab.) It was one of my favorite games I played in London and highly recommended for anyone looking to channel their inner thief (for a just cause…)!
We love, love, love Agent Brains and were thrilled, having played their original three games a while ago, that they have now expanded with a second location just around the corner from their first. Took us a bit of time to get organised but finally managed a birthday celebration double-header.
Lists
This game is part of the following user-created game lists:
These are the 100 highest rated escape rooms in the UK, as of 31st Dec 2025, based on combined ratings from enthusiasts, bloggers and experts - every game here comes highly recommended.
These are the 100 highest rated escape rooms in the UK, as of 31st Dec 2024, based on combined ratings from enthusiasts, bloggers and experts - every game here comes highly recommended.
