- A literal collision between worlds; see Colony Drop for this. Alternatively, maybe you were looking for When Dimensions Collide instead.
- The Speculative Fiction novel written 1932-1933 by Philip Wylie, When Worlds Collide.
- The 1951 sci-fi film produced by George Pal, When Worlds Collide.
- The Total Drama Island redux/crossover fic by max3833, When Worlds Collide.
- The Danny Phantom and Darkwing Duck Massive Multiplayer Crossover by Ronnie, When Worlds Collide Series.
When Worlds Collide
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