With the 5v5 soccer game Rematch now in full release, developer Sloclap has issued an apology for waiting until the last minute to tell fans it would not have crossplay at launch—and promising that the feature is coming as soon as possible...
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Rematch launched without crossplay because of 'unforeseen technical complexities' and Sloclap is sorry, but it's a hit on Steam anyway
Source: PC Gamer (opens in a new tab)