Raw Arena is a provider of mostly slot games for Internet casinos. They also offer a "crash" game. The company web site indicates they are out of Malta.

The company web site allows some of their games to be played for free.  I found many of them were geographically restricted to me in Nevada and others just never loaded.  They kindly indicate the RTP choices available for operators. Here are some examples.

The Wild Bunch -- 90.06%, 94.45%, 95.41%.

 

Almighty Lollipop -- 90.04%, 94.54%, 95.53%

 

Raw Arena — Corporate web site.