Standing still to hold one square: why defence is harder than shooting
The three commonest placement mistakes, and how to think in routes instead of weapons.
It sounds backwards, but defence games are harder than shooting games. When you shoot, you move, you pick a target, and a mistake gets fixed on the next shot. When you defend, you put one gun on one square and then watch. One bad square is a bad run, and you cannot fix it because the wave has already gone past.
That is why Hold the Line sits in its own lane. This is not a group for people who want fast reflexes. It is a group for people who like reading a map: look at a junction, work out which way the next wave will come, and put exactly one gun there.
The three most common mistakes for newcomers. The first is spreading guns evenly across the map. It sounds sensible and it is wrong: one strong gun in the right place kills more than five weak ones scattered about, because the wave always travels one route and you only have to block that route.
The second mistake is upgrading too early. New players pour everything into a single gun straight away, then discover the fourth wave walks around it. The safer pattern is to hold some back, place a second gun at the next junction, and only then upgrade the first.
The third mistake is watching for too long. These games give you time between waves, and it is very easy to spend all of it aiming at things instead of changing them. The gap between waves is for rearranging the board, not for admiring it.
There is a way of thinking that makes this group much easier: treat each square as an investment rather than a gun. A square on the main path is worth funding; a square that covers one small corner is not. Once you think in routes instead of weapons, placement decisions become obvious.
This is also the easiest group to play while doing something else. Because there are pauses between waves, you can look at another window and come back without losing anything. That is why it sits in the Ten Minutes on the Door collection alongside the survival titles.
One thing to say about difficulty: this group is not hard because of reflexes, it is hard because you have to live with your own decisions. When the sixth wave pours through, you can see exactly where you went wrong three minutes ago. There is no way to fix it inside that run. The only fix is to start again and place differently.
Finally, do not skip this group just because it is slow. Across the whole site it has the highest return rate: a player who loses a run usually reopens it immediately to try a different layout. Fast shooting is fun, but fixing your own mistake is what you remember.
A practice routine worth trying: play three runs on the same map, but each run only place guns in one zone. The first run, upper half only. The second, lower half only. The third, the middle only. After three runs you will know exactly which zone earns the most, and the fourth run will look nothing like the first three. This is how good players learn a map, and it is also the fastest way to understand a new defence game without reading anything.
One warning about that routine: it will look like you are playing badly, and you are. The point is not to win those three runs, it is to see what each zone can do when it is the only thing working. Most players never find out, because they spread their guns evenly every time and never learn which square actually matters.

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