Sig.NULL Steam CD Key

This is a remake and expansion of an earlier PuzzleScript game, Signal. What I thought was so brilliant about the original is that while the rules never change, the level design is such that your ability to fully comprehend and exploit those rules shifts radically over time. The early levels are trivial to figure out — it looks at first like a standard block-pushing game — but it turns out that even the basic mechanism through which you were interacting with those puzzles works differently th
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