Ten to fifteen minutes, on the phones people already have, with nothing for IT to approve.
3–12 players
10–15 min
Phones only
No app or account
Free
The problem with most team games is the overhead: an account each, a licence, a download, and a facilitator reading instructions while eleven people wait. By the time that is finished the half hour is gone.
These need a web address and four letters. Nobody signs up and nobody installs anything. Names and photos stay on the phones that entered them, and the room itself lives in memory and is never written to disk. A round takes about as long as the waiting usually does.
They are built to be played by people who have never met in person, which is the normal case for a distributed team. Nothing depends on shared history or on being in the same country.