Thirty seconds.

If it takes longer than that to explain, nobody plays.

1
Pick a tile. Pay. Your logo goes up.
Tiles start at $5.
2
The price climbs as tiles fill.
Every 100 tiles sold, the floor goes up $5. Right now it is $5.
3
Your heat decays.
Every tile cools by half every 3 days.
4
Hot tiles sit top-left. Cold tiles sink.
Position is heat. Nothing else.
5
Sold out? Then take someone’s.
Costs 1.5× their current heat, and never less than the floor.
6
No refunds. Ever.
You’re a squatter, not an owner.

STILL WONDERING

Do I get a refund if I’m evicted?: No. Payment is final. You paid for the time you held it.
Are the links dofollow?: No. Every link out of tilesquat is rel="sponsored" — the board and your listing page both. We do not sell links that pass ranking signals. What you get is a page search engines can index, your own words on it, and a click count anyone can check.
What happens if I stop paying?: Nothing — your tile just cools and sinks until someone takes it.
Can I buy multiple tiles?: Yes. Tiles bought together stay one block: same price, same heat, so they land side by side. Evict one out of a block and the block shrinks by one.
What’s banned?: Gambling, adult, crypto schemes, malware. Removed without refund.
How fast is the board?: It refreshes itself every few seconds. Worst case you are looking at something six seconds old — which is why a tile can get taken between you seeing it and clicking it.

The dull-but-binding version lives in the terms.