This brand name would be well suited to an exercise or betting company.
The name "BTCplay" has seven letters and just one syllable. Single-syllable names are extremely rare and very prestigious. One syllable names are used by established brands like Square, Shell and Dell.
Btcplay.com is a dot com domain. Dot com domains are the most valuable domain extension in the world, used by famous websites like youtube.com. When most people think of a website, they think of a dot com.