Doomsday Games: Critical Mass

By | November 30, 2019

by Doomsday Games (website)

1st floor Global House, Moorside, CO1 2TJ


2-6 players

Languages: EN

90 mins
Do you have what it takes to take on the mission of saving humanity from the catastrophic effects of a nuclear melt down?
show full description
Thank you for helping keep Escape the Review up to date!
Let us know what needs changing:

If you own or manage this company, you can also claim the listing and update it yourself

Overall rating

Rated between 3 and 5 out of 5

based on ratings from 10 users
combined with 1 pro review

Your review

Player reviews

HayleyC rated this:Rated between 50 and 50 out of 5
Played: 23 Mar 2024 Team size: 4 Outcome: Successful escape!
hi-techcleverintensequite difficult
Highly recommended.  Had done the Pathogen game previously, these guys set up their games well.  Critical mass did not disappoint!  Really fun game, family loved it.  I wish Doomsday Games colchester had even more games.
tmoitie rated this:Rated between 50 and 50 out of 5
Played: 8 Feb 2024 Team size: 5 Time taken: 64:24 Outcome: Successful escape!
hi-techfunnyimmersivequite difficult😨creepy
A Blacksmith expert rated this:Rated between 30 and 30 out of 5
Outcome: Successful escape!
Reece Clark-Jacobs rated this:Rated between 20 and 20 out of 5
broken techoverpriced
MrsRock rated this:Rated between 50 and 50 out of 5
Played: 21 Nov 2023 Team size: 2 Time taken: 73mins Outcome: Successful escape!
immersivestory-drivengreat hosting

Another outstanding set from Doomsday Games that really transports you into the story. Lots of great puzzles on offer but without being overwhelming. Great mix of puzzle types, with something for everyone on the team. 

The host was lovely and looked after us well. We love a 90 minute room and this one was no exception - would recommend going out of your way to visit this room!

emdelacreme rated this:Rated between 50 and 50 out of 5
hi-techcleverimmersivequite difficult

This game is on a different level to so many others I have played. The theming is immaculate with some fun Easter eggs for people with an eye for detail and a nerdy inclination. The game is fully immersive and story driven with brain bendy and tactile puzzles. Enthusiast or newbie, if you’re looking for a real experience as well as a game with spot on balance of fun and challenge, this is it!

matt_keds expert rated this:Rated between 40 and 40 out of 5
Played: 11 Aug 2023 Team size: 2 Outcome: Successful escape!
hi-techimmersivegreat hostingquite difficult
Jess_keds expert rated this:Rated between 35 and 35 out of 5
Team size: 2 Outcome: Successful escape!
hi-techstory-drivenintensequite difficult

Another high-tech game! Creative storyline which flows effortlessly. Like their other room, the puzzles were challenging and kept us very busy for the full 90 minutes. However, when reflecting on the room, the first puzzle seems rather difficult to be faced with when you first start. Had this puzzle been a few steps in, it might have felt less draining! Although, we did feel a great sense of achievement when we succeeded. Nice balance of tech vs physical puzzles. The final puzzle may benefit from sign posting as there was one element that felt quite subjective. 

Big shout out to Michelle who ran this room for the first time during our visit. She guided us through the room efficiently with excellent and hilarious communication. 

Dan Taylor experienced rated this:Rated between 45 and 45 out of 5
Played: 15 Jun 2023 Team size: 2 Time taken: 81 minutes Outcome: Successful escape!
hi-techoriginalintensevery difficult

Having played the Pathogen room several years ago I had been waiting to play this game and it was definitely worth the wait. Very challenging game though, so fair warning! We were told out of 34 teams who have played so far we were only the 6th to escape! Some really fun puzzles and tech that I’ve not seen before which is always a nice thing to see. The only thing for me keeping me from putting it as 5 stars is that I felt some of the puzzles repeated themselves just a little too much or went on a little too long but I could see for a larger team this would be beneficial as it would allow everyone to have a go. All in all though, it’s another very strong room from Doomsday. Also, the hosts (yeah there were 2!) Cat and Michelle were lovely and we spent a nice little while talking escape rooms too 

jakea256 expert rated this:Rated between 50 and 50 out of 5
Played: 30 May 2023 Team size: 2 Time taken: 70 minutes Outcome: Successful escape!

Continuing with the end of the world is nigh theme, Critical Mass continues 5 years after their other game Pathogen left us. As expected this game lived up to the expectations of its predecessor with some really fun multistep puzzles, unique theming, special effects and nods to the other game thrown in. Both games at Doomsday are must plays if in the area.

Reviews by escape room review sites

If you love a high tech game, you’re likely to love Critical Mass. There were a few things that made me love it a little less than Pathogen, but that could just be me being picky.

See also