Deep in the depths of the underground, where the rats are aplenty, the Wi-Fi is scarce. The same goes for most airplanes. You could read a damn book, but if you'd rather gaze lovingly into your smartphone screen, there are some apps that can give you an LED fix below street level. In other words, they require no data or internet connection. They even work in airplane mode. Soak in the pixels, baby.
Candy Crush Saga
If you're into massaging your math muscle with some basic addition, this sliding-block puzzle game is a good way to pass the time.
The crosswords from the daily newspaper are also available in app form. Woot! Be more conspicuous in your failed attempts to complete the high-brow puzzle by substituting the big-ass newspaper for your 5-inch screen.
Dots & Co
Challenge your beautiful brain with the digital version of Sudoku. Like the aforementioned NYTimes Crossword app, this is a less wieldy alternative to carrying around the analog version.
LOL, were you going to bring a deck of cards on the train? No. Download the Solitaire app instead.
LOL, were you going to bring a board game on the train? No. Download the Catan app, nerds. Mic editor Cooper Fleishman approves.
These apps aren't games, but they're just as entertaining (and don't need data or Wi-Fi)
If you pay for a monthly subscription of Spotify, you can download music to listen to offline — without ads.