After Learn to Fly: Burrito Bison, Toss the Turtle, Johnny Upgrade and the Launch Shelf
The launch-and-upgrade games on this site that share the penguin's loop — one run, some cash, a shop, a longer run — and what each does differently.
Learn to Fly Blog
Upgrade strategy, the three penguin games, and what to launch next.
The Learn to Fly Series: the 2009 Original, the 2011 Sequel and Learn to Fly 3
What changed between the three penguin games, which one is self-hosted here, and where Learn to Fly 3's space rockets fit.
Learn to Fly Upgrade Order: Spending Thirty Days of Cash Without Wasting a Flight
Which shop item to buy first, why the glider is a trap on day two, and how the duration bonus decides what a good flight looks like.