On Planet of Heroes — a real-time mobile MOBA, an Apple Trend Game of 2017 — we shipped a story mode from day one. It felt generous. What it actually did was split the player base clean in half: a large share never touched the PvP the whole game was built around, which meant longer matchmaking, emptier brackets, a worse game for everyone who came for the fight. Even League of Legends shows it in its queue times. If your game needs a crowd in one place, think hard before you build a second place to stand.