[imtringued]

Are you seriously comparing drugs and alcohol with video games and saying video games are worse replacements?

What the hell is wrong with you? Most people get bored of any particular game given enough time. Any psychological dependency will disappear and fade away.

The reason drugs screw you over is that they enter your brain directly. The brain can't cope with direct chemical alterations through countermeasures on a mental level. For the brain to protect itself from that, it would need to activate the immune system and send out macrophages etc to physically get rid of the chemicals.