/usr/share/games/gravitywars/levels/level12.dat is in gravitywars 1.102-32ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | level ""
author ""
comment ""
time 99
fuel 99
x y start stop frame speed
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