RN Estudio has a rather unique prize they’re giving away on their Facebook page.
You, too, could win a gas mask.
From the announcement:
We will raffle during the pre-campaign and launch the game a total of 5 gas masks to the Defender find a supply drawer in one of his forays into the Wasteland.
The delivery order is very strict, the first will be delivered in two weeks, as a survivor who dwell in the shelter must prove yourself to be worthy of.