ToME: the Tales of Maj'Eyal

So, I got the game fairly recently, and I've already sunk a lot of hours into it, so I'd like to support it.

However, I'm trying to figure out if there's a way I can donate to support the game without using Paypal. The closest I came was finding this 3 year old topic discussing possibly opening up other methods of donating as an option, but no update on whether anything ever came of it.

Is Paypal still the only choice for donating?

You can buy it on Steam and it counts as donation for item vault, etc.