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

$3.99−90% · was $39.99
At or near its lowest price
93% positive on Steam

$14.99−70% · was $49.99
At or near its lowest price
90% positive on Steam
$59.99
Regular price; it has been much cheaper
78% positive on Steam

$69.99
Regular price
60% 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.