Yes. Your userbase will not give a single shit about how thoroughly tested your game is or how elegant your code is. Mainly since you'll give up on it long before they ever see it.

It's a game. Treat it like one.

TDD is great for your day job, where you ship bulletproof software for work. Nobody does work for fun. Look at how many games are written in Java.

For a personal project, only write unit tests to ensure specific bugs get fixed. No more. This ensures you do the least possible amount of Work.

In the end, you'll say holy shit, I have a ton of bugs to fix-- that guy was full of shit. But you'll have a functional game to fix the bugs on within a year, rather than a pile of exquisite code that does nothing after a decade.