Other features: While not required, features like waterproofing and Bluetooth audio can make a good e-reader great.In other words, most specs are less important than how good the ebook reader feels in the hand. Battery life and storage: Most of the readers promise battery life somewhere between six and eight weeks (depending on usage) and offer 8 GB or 32 GB of storage.

Six-inch screens are the most common size, as well as the most portable and likely to be pocketable, although newer readers pack larger screens into similarly sized bodies, which is a bonus.

Build quality and size: While most ebook readers are made of plastic, some feel better than others in your hands.

Anything lower will mean less crisp text and images.

Screen quality: We gave preference to devices with a pixel density of 300 dots per inch, the highest available in any ebook reader and what most models offer.

(Unlike tablets such as the iPad, ebook readers use a side-lighting system that provides a glow across the screen, rather than from behind it.) Because this feature is so prevalent, we didn’t test any readers without it.

Built-in lighting: Most e-readers provide their own light for reading in dark environments.

Fully animated cutscenes and voice over: with hundreds of lines of voice over, great animation, and fully animated cutscenes, we didn’t spare any expense to make an immersive experience.

Choose your own game mode: with 5 different game modes and extensive custom generation options, each player can play the way they prefer.

Randomly generated world: locations, threats, and loot are randomly generated so each playthrough is vastly different and you’ll never get complacent.

Deep customization of builds: each play through is different as you create your own strategy using agents, items, augments and programs, and adapt to your surroundings.

Character selection: Start with any of the 10 unlockable agents in the game, plus 6 agent variants, and 6 starting programs to crack corporate security.

Stealth, precision, and teamwork are essential in high-stakes, high-profit missions, where every move may cost an agent their life. Take control of Invisible's agents in the field and infiltrate the world's most dangerous corporations.

Klei Entertainment, the independent studio behind the hit games Mark of the Ninja and, Don't Starve, presents: Invisible, Inc.

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