2-8 6-8 8
45-60 minutes
Low
2-4 2-4 4
30 minutes
2-4 2-4 3-4
15 minutes
Simple
Upgrade One
2-8 2-8
12-45 minutes
2-4 3-4 4
10 minutes
20 minutes
Operation Dragon
30-60 minutes
Medium
2-6 3-6 4, 6
2 2
15-30 minutes
2-5 2-5
2-9 2-9
12 minutes
2-4 2-4
Space Hunt
25-40 minutes
3-8 3-8
3-6 3-6
0-30 minutes
20-40 minutes
2-6 2-6