Grass Defense

Grass Defense looks like an ordinary tower defense until you read the instruction on screen. The path is not already drawn on the map — you draw it, and it has to stay within weapon range.

That one rule sets everything else. The longer you route the path through your range, the longer the creatures spend under fire. A straight line from edge to edge is the quickest to draw and the quickest way to let them reach your base.

Resources are limited, which is where the decisions sit. Coins go into strengthening what you have, and every upgrade changes which shapes of path are worth drawing.

The enemy keeps changing. Foes get tougher and more varied as you advance, so a route that carried the early waves quietly stops being enough. Redrawing before the next wave costs far less than reacting after one breaks through.

Environments change between levels, and each map gives you different room to work with. It is easy to follow in a single level, and it takes a few attempts before a genuinely tidy route starts to appear.