A "desolate planet" refers to a planet that is empty, deserted, and without much life or civilization. It suggests a place that is lonely, barren, and lacking in resources or signs of human activity. Full definition
If we drive our fellow species to extinction, we will leave a far more desolate planet for our descendants than the world we inherited from our elders. (theguardian.com)
Borderlands places you in the role of a mercenary on the lawless and desolate planet of Pandora, hell bent on finding a legendary stockpile of powerful alien technology known as The Vault. (blog.us.playstation.com)
In this game, players are tasked with keeping their crew, which has crash - landed on a cold desolate planet, alive for 40 days. (thatvideogameblog.com)