The free online slot machines are not illegal as it's an active license. The reason you are allowed to play
ทดลองเล่นสล็อต push gaming online for free is so that you can become acquainted with the game's mechanics before actually playing for money. Certain sites provide free versions of the games prior making a sign-up, and permit you to try your luck without risking money. Once you are at ease, you are able to change to a paid version.