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Big Sigma is a 7-book series with 6 primary works first released in 2011 with contributions by Joseph R. Lallo.
Beta Testers
2018 • 2 Readers • 4.5
2011 • 14 Readers • 223 pages • 4
Unstable Prototypes
2012 • 3 Readers • 5
2014 • 2 Readers • 476 pages • 4.5
2016 • 2 Readers • 543 pages • 5
2019 • 2 Readers • 4.3
2020 • 1 Reader • 372 pages • 5