The open beta for Diablo 4 that required paid access comes and gone, however, if you like whatever you tried, there are lots of benefits to pre-ordering d4 buy items before its June 5 release (June 5 at 4 p.m. to the United States, June 6 at 12 a.m. for Europe, and June 6 at 8 a.m. for Asia), including in-game cosmetics to early use of the full game. So, if you're curious about what each...