Wicht
Hero
Which is kinda interesting. There's all this pressure on WotC to make their game open, when of the top 5 other game systems, two are based on already open licences and have to be open (FATE and Pathfinder), one is open to the fans (Savage Worlds), and two are closed (AGE, World of Darkness).
Shouldn't there be equal pressure on Green Ronin and Pramas?
Why does FATE "have to be open?"
The only requirement that Savage World has for producers is that their goods be of suitable quality; if you can afford to do a nice book, Savage Worlds is, for all practical purposes, open.
And while your point is taken, I would mention that your list of the Top 5 is out of date. WoD hasn't been in the top 5 in about 5 years, and AGE hasn't been there since about 2012 I think.
Fantasy Flight has really been about #3 for most of the last three years with their various offerings, including Warhammer and Star Wars. FATE has bounced around at 4 or 5, alternating with whatever is popular, and Shadowrun has also made a pretty good run for holding that 4th or 5th spot.
As for Pressure on WotC, it comes from two things... One, they more or less said they were going to. And Two, many of us think it would help them hold on to their #1 or #2 spot for an extended period of time. Notice that the non-OGL offerings don't seem to have a whole lot of staying power; FFG for instance does not do good support of their material and it drops in popularity pretty quickly. Catalyst would, I think, also solidify their rank with Shadowrun if they would make it OGL and open it up to some good, extended design work.