Historical low on this at the moment (as far as I am aware). I think it's also a part of the GoG Connect program allowing you to import it into GoG as a DRM free title.
GamesMaster Magazine said "Rainbow Six meets XCOM."
“When a smartly conceived plan comes together Breach & Clear is every bit as satisfying as Frozen Synapse or XCOM: Enemy Unknown.”
7/10 – Pocket Gamer
“Breach and Clear is a masterful game.”
5/5 – GameWoof
It has a very positive score with an 85% positive vote over 1232 ratings.