StarCraft II

The game is split into three separate self-contained installment products.

StarCraft II: Wings of Liberty, the terran campaign
StarCraft II: Heart of the Swarm, the zerg campaign
StarCraft II: Legacy of the Void, the protoss campaign

Blizzard Entertainment chose this route due to the challenges they faced creating the campaigns. Through a trilogy, they can create more content per campaign, such as movies, sets, props, characters, missions (including Easter egg missions) and so forth. Each character has their own arcs, missions and dialog. The story has been designed so that no previous knowledge of StarCraft is required to enjoy it. In-universe the campaigns occur in sequence, each campaign beginning immediately after its predecessor. Each campaign has 26-30 missions in total (including branching missions) and a set ending, rather than a cliff-hanger. All three races were completely developed for the multiplayer skirmish mode.

StarCraft II[starcraft2.com]
StarCraft Remastered[starcraft.com]