Ok I know 3 people who specifically were writers before they entered the games industry, and I was one as well. We’re all published.
1 made it in by taking other jobs in technology, building those skills and entering as a tester and moving up via level design. He is now firmly established as solely a video games person.
The second is probably the most prolific of the lot of us regarding published work. He works occasionally with videogames as a scriptwriter, but still needs to take other writing jobs to earn a living.
the 3rd started his own company and I believe he is still in the biz, I haven’t heard from in over 8 years though.
I got a few interviews but was ultimately shot down for lack of qualifications. I’m in my final year of college now.
I have been explicitly told, only a short time ago in fact, that there is little to no use for a full time writer in any games company. You will need more strings to your bow, preferably level design and scripting ability. Don’t get intimidated, level design is easily done on paper and then transfered to a level editor, it just takes practice. Scripting is not overly difficult and is certainly not as complex as programming.
Games courses are emerging, and might well become a standard with a few short years. If you can afford it I’d recommend a short games course, there’s 3 about I believe 2 in Dublin(Ballyfermot) and 1 up north (sorry no idea).
PM me if you’d like to know about Ballyfermot, and I’m sure someone will stick up their hand as a student contact point for the other courses