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

$39.99
Regular price
85% positive on Steam

$34.99
Regular price; it has been much cheaper
94% positive on Steam

$29.99
Regular price; it has been much cheaper
90% positive on Steam

$34.99
Regular price; it has been much cheaper
85% positive on Steam

$19.99
Regular price; it has been much cheaper
84% 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.