Amazon has pulled the plug on the game entirely and is offering full refunds. This game basically went from alpha to beta to release, back to beta and then to death. In total, the game was released for a mere 11 days and even being free, there was no prospect of garnering any population. This will go down as the second biggest failure of a game of this nature, just behind The Culling 2 which was dead after two hours.
Amazon is giving up on Crucible, offering full refunds | PC Gamer
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The shooter retreated into closed beta after launch, and it won't make it back to release.