7 Cities TD 七城防御戰堪稱最好的防御型游戲了。 最近偶然發現其地圖坐標文件，修改數據後，可以使“敵人”按自己的設計路線行走， 同時取消回終點的數據後，“敵人”可以在一個路線上死循環的來回行走，那麼沿路 兩側設置幾個炮塔慢慢打吧，再厲害的“敵人”多打幾次都能打死，使自己永遠立於不敗的境地！至於能打到多少關，就看各人的耐心了...

　　言歸正傳：將安裝目錄中的MapX.tdm拷貝到電腦，其中“X”是任意數字，代表不同關的地圖數據，用記事本打開，修改等於號後面的數據。每關數據不同，根據各人喜好來設計路線的坐標了。 現以第二關的Map2.tdm為例

[Nonbuildable]
120,126,133,139,134,
128,123,117,112,106,
113,125,137,142,136,
129,116,110,103,97,
90,78,66,54,42,
30,25,19,14,20,
27,39,51,63,75,
87,92,86,74,68,
57,52,46,53,65,
71,
144,150,152,153,155,
108,102,96,
95,89,83,
12,6,0,1,35,
29,22,23,16,17,
9,10,11,3,4,
5,
79,
[PathNodes]
0 = 120; 1, 1
1 = 1; 0, 2
2 = 1; 0, 3
3 = 1; 0, 4
4 = 1; 0, 5
5 = 1; 0, 6
6 = 1; 0, 7
7 = 1; 0, 8
8 = 1; 0, 9
9 = 1; 0, 10
10 = 1; 0, 11
11 = 1; 0, 12
12 = 1; 0, 13
13 = 1; 0, 14
14 = 1; 0, 15
15 = 1; 0, 16
16 = 1; 0, 17
17 = 1; 0, 18
18 = 1; 0, 19
19 = 1; 0, 20
20 = 9; 0, 21
21 = 9; 0, 22
22 = 7; 0, 23
23 = 6; 0, 24
24 = 5; 0, 25
25 = 4; 0, 26
26 = 3; 0, 27
27 = 2; 0, 28
28 = 1; 0, 29
29 = 1; 0, 30
30 = 2; 0, 31
31 = 2; 0, 32
32 = 3; 0, 33
33 = 5; 0, 34
34 = 6; 0, 35
35 = 7; 0, 36
36 = 8; 0, 37
37 = 9; 0, 38
38 = 6; 0, 39
39 = 7; 0, 40
40 = 6; 0, 41
41 = 6; 0, 42
42 = 5; 0, 43
43 = 5; 0, 44
44 = 4; 0, 45
45 = 5; 0, 46
46 = 6; 0, 47
47 = 7; 2, 0

改好後保存，再覆蓋回去。
效果：“敵人”從出口直接向下到地圖底部，再左右徘徊個不停。