Cross-play between different consoles isn't an option for Destiny because Bungie didn't want players to feel they were at a disadvantage playing on less powerful hardware.

Bungie engineer Roger Wolfson spoke to Digital Trends about the problem with perception in multiplayer and hardware disparity:

"I'll speak for the hypothetical player," he explains. "I have a disadvantage sniping across the map because [my opponent with a next-gen console] is only two pixels on my screen and I'm four pixels on his".

Wolfson continues: "You see that in the world of PC gaming, where people are always racing to the best video card to give themselves the advantage.

"Regardless of where the reality is, there's definitely a perception among gamers that better hardware means you have an advantage. We don't want to have to enter that fray, so to create the best, most level playing field, both actually and perceptually, we separated it by platform."

The Destiny beta opened for PlayStation platforms last week but is due to go offline for maintenance later today.

Source: digitaltrends.com