Classic hits very often do not need any changes in order for the old idea to have a chance to be adopted among the current generation of players. Free clones such as Space Invaders prove it every now and then. Free project INVADR doesn't change too much in its usual formula, focusing on the catchy music path and neat graphics.

The game is fun, and the title is not a pixelose in the eyes. We play for points. We gain these by shooting down alien ships from the sky, who want to quickly master our beautiful planet.

The invaders, of course, do not remain indebted, also targeting us once in a while from the guns. Their rows are also constantly moving downwards, gradually accelerating to this. It's time to focus on removing layers and staying under the force field cover.

The number of lives is limited. To add variety to the gameplay, a few innovations have been introduced. Once in a while the aliens drop the cow and its catching gives additional points.

Special-purpose heavenly ships appear, including airplanes and flying saucers. There are also menacing suicides, falling head down and, after survival, moving left or right. There were many different mailboxes with bonuses, mainly contributing to the result.