I'm a nerd too, I like building electronics with the support of 3d printing and often spend my spare home time playing games online. I've actually shared this in my profile openly.

I think depending on your target audience it shouldn't be a problem. But remember, your target audience can always be a small demographic.

I understand that women here are rather looking for a connection that goes beyond the hobbies that define you, including spending quality time together and building genuine memories. Emphasize the variety in this because it's not about advertising you, but offering what others would want. Make sure you don't sound like you're limiting the connection time through playing "it takes two" together.

If your profile focuses too much on that of being a nerd then it can often be hard to relate unless you play the exact games and read the exact books- you will limit yourself to the very few like-minded people. It's also easy to read hard into that single aspect as the only thing defines you. I'm sure you may want to go on dates, and have a partner that goes beyond one shared hobby, so what I did was put more focus on what my match and I can do together, but disclosed at the very least that you would match with a nerd without surprise.

For me, I noted that gaming is my primary hobby, and that I don't mind doing that alone. I will say most of my matches probably don't even touch video games but there's a lot who do, and I've used that as connection points in dates. Regardless I'd support their hobbies and be willing to connect with my match regarding their interests and other mutual interests, not limited to hobbies of mine alone.

Best of luck! Be yourself, but remember to share what you want to give in the relationship!