How many Risk of Rain games have been released on PC?
2
2
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
4
1
2
3
4
1
2
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
1
2
5
3
4
0
1
2
5
3
4
0
1
2
5
3
4
1
2
5
3
4
6
1
2
7
5
3
4
6
1
7
5
3
4
6
7
5
4
6
7
5
4
6
7
5
4
6
8
7
5
4
6
8
7
5
6
8
7
5
9
6
8
7
5
9
6
8
7
9
6
8
7
9
6
8
11
7
9
6
8
11
7
9
10
6
8
11
7
9
10
6
8
11
7
9
10
6
8
11
7
9
10
6
8
11
7
13
9
10
6
8
11
7
13
9
10
6
8
11
7
13
12
9
10
6
8
11
7
13
12
9
10
112
112
2+
128
128