StarCraft II: Legacy of the Void already sold over 1 million copies
StarCraft II: Legacy of the Void sold over 1 million copies in 24 hours. This result is better than of Heart of the Swarm (the previous installment) and similar to Wings of Liberty.
The grand finale of StarCraft II trilogy turned out to be a commercial success. During the first 24 hours since the release Fallout 4. Obviously, StarCraft franchise has a huge fanbase of its own. However, it is possible that many players share their love between this sci-fi real-time strategy series and the postapocalyptic wasteland of Fallout, so they probably had to face a tough decision.

Players all over the world were eager to witness the conclussion of StarCraft II trilogy.
As noted by Eurogamer, day one results of Legacy of the Void are more or less on par with Diablo III with its 3.5 mln copies sold on day one.
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