Glass

Glass is one of the several natural blocks which you can utilise for your construction projects. For unknown reasons, Window Blocks have twice the cost, despite otherwise seeming identical to glass (except for visuals).

Usage
Glass blocks have no restrictions set upon them. You can place them more or less anywhere you want. It is a light material with the ability to float. Due to its low health and armour, its typical application would be for decorative windows and transparent fences.

Visual detection blocks (cameras, but not IR-cameras) are able to detect enemies through them, making glass useful to add a little protection to those blocks, or reduce drag.

Note that it is often not a good choice if building bridges for the player – Other blocks with mostly transparent features will often provide more protection. For example, see-through Advanced Cannon Ammo Clips may be used for this.

Trivia
At some point in the game, the glass-block looked a lot like the window block does now.