Because of my video games experience, I get asked once in a while what software should people learn to get a job in Video Games and unfortunately I don’t have a straight answer, it depends on the company and sometimes in even depends on the team.
At Microsoft/Rare we used Maya and since the company is now doing more and more motion capture, I have been told they also use Motion Builder on top.
At EA, the team I worked with on Spare Parts exclusively used Maya but the Harry Pottter team was also using a bit of Motion builder.
However, those two, with Sony, might be the exceptions as most companies use 3dstudio max. If you want to check this for yourself, you just need to go to any of the numerous british Video Games agencies like Aaswift, OPM Jobs, Amiqus, Datascope and go through the jobs specs. The job columns of Industry websites or monthly publications can also be revealing, here are two for you:
One thing I should also mention is that 3dstudio Max offers several animation technologies which have little in common so you might want to get confirmation whereas the studio you are targeting uses Biped/Character Studio, CAT or regular joint based rigs.
A website that could also prove very useful to find jobs in games but others industry related to animation as well is CG Studio Map. CG studio map is a website referencing all the animation studios and game studios. Some of the infos are not very accurate regarding the software used but it still remains a really good resource. Correct me if I am wrong but I don’t think Ubisoft Paris uses Softimage as their main tool.
As a conclusion, I think you will probably have to learn all the softwares so don’t be a fanboy, don’t get too hung up with that software you have spent years learning. I know it is tough, I am also going through the same thing but that’s the way it is if you want to stay employed.