Halo: Campaign Evolved, a remake of the original Halo 1 campaign, has fallen short of sales expectations, particularly when compared to the recent Black Ops revivals. The probable reason for this discrepancy? A lack of multiplayer, according to Alinea Analytics. The game sold 1.2 million copies across Steam, PS5, and Xbox in two weeks, with Xbox leading the charge at 42% of sales, followed closely by PlayStation at 41%. Steam accounted for 17% of the total. The player numbers were boosted by the day-one Game Pass release, attracting around 2.1 million players, with approximately 600,000 spending an additional $20 for the Premium Pass to play five days early. However, the price point of $50 may have been too high, especially considering the Master Chief Collection, which includes multiple Halo games and their multiplayer modes, is cheaper at $40 and has seen lower sales. The Black Ops ports, which include multiplayer, have reportedly brought in $435 million combined, outselling Halo 16-to-1. The absence of multiplayer in Campaign Evolved may have been a significant factor in its sales performance. A Master Chief Collection release on PS5, with multiplayer, would have likely performed much better, as suggested by Alinea analyst Rhys Elliott. Despite the remake's success in reinventing the FPS classic, the lack of multiplayer may have limited its appeal, particularly for those seeking the competitive multiplayer experience that Black Ops offers. This raises a deeper question: How important is multiplayer in the success of a remake, and can a campaign-only title ever truly compete with the multiplayer-focused games that dominate the market?