Ask HN: Best free / paid cartography program for tabletop gaming?

So I've been asked to do some game mastering for a tabletop game campaign.

Back in the day I used AutoREALM and it worked a treat, but it doesn't do much automatic generation and is increasingly unable to produce high-enough resolution images to print.

What are the best programs (preferably offline / perpetual license) for the use case of 'generate me a map, let me customize some tiles, then let me label points of interest before exporting to a big image'?

I am willing to pay for good results, but I can't pay $200 (just a hobby after all).

FWIW the current campaign is sci-fi but I'd like to future-proof if possible so fantasy tilesets etc. would not go amiss.