Checking the evidence…Reading the prices…Writing the verdict…
Developers

$9.89−67% · was $29.99
At or near its lowest price
92% positive on Steam

$19.99
Regular price; it has been much cheaper
94% positive on Steam

$39.99
Regular price
78% positive on Steam
Best verdict first. The developer name is taken from the Steam page, so a studio that publishes under two names may appear twice.