This app was mentioned in 5 comments, with an average of 1.80 upvotes
There's a link via the widget at the bottom of the article, but I'm not sure it's really "up" yet. The only thing I had that was listed as compatible was a Android x86 VM, so I tried purchasing and having it sent to that, but as soon as I booted it up, the download errored out. Loaded up the Play Store from within the VM, and it told me it was incompatible. ¯\_(ツ)_\/¯
(There's also the fact that it only has "1-5" installs so far.)
Theres also Killing Floor Calamity (https://play.google.com/store/apps/details?id=com.Tripwire.Calamity&hl=es_419&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Dkilling+floor+google+play&pcampaignid=APPU_1_W8YXWKCJKcHDwASZ1rGYAw) but it doesnt say anything about controller and its paid
Recently out on the Play Store.