START WITH A STRONG CORE LOOP
Growth Principle #1: Success is more about execution than ideation. Don’t feel the need to fix what isn’t broken.
IMPROVE CONSTANTLY
Growth Principle #2: Constantly seek to give your users a better product.
LOOK FOR FREE MARKETING
Growth Principle #3: Paid marketing scales easily, but don’t underestimate the power of free.
USE PAID MARKETING STRATEGICALLY
Growth Principle #4: Look for ROI positive opportunities for paid media that others might be ignoring.
MAKE ONBOARDING SEAMLESS
Growth Principle #5: A good onboarding flow should teach what users need for day one. No less; no more.
MAKE DAILY ENGAGEMENT CORE TO YOUR PRODUCT
Growth Principle #6: Good engagement radiates from the product’s core; it’s not a layer you can wrap around the outside.
BUILD EVERYTHING WITH REVENUE IN MIND
Growth Principle #7: Revenue must not be an afterthought; make it core to your product design.
LOOKING FORWARD
With three years of chart topping success, Clash has already outperformed and outlived most mobile games (see Flappy Bird or Trivia Crack which both lasted for about two months). With frequent updates and solid marketing strategy, they have managed to attract and keep a steady stream of users.
culled from - https://buckfiftymba.com/clash-of-clans/