A) Schematic of SingleMut, DoubleMut, and TripleMut. B) Mice were induced with one injection of 50 mg/kg tamoxifen and then assessed for survival (n=8–10), C) tumor number (n=8–10), D) tumor progression (n=8–10), and E) histology (n=8–10). F) Mice were treated with low dose tamoxifen and lungs and livers were macroscopically assessed for metastasis (n=7). G) Mice were induced with a tamoxifen dose calculated to cause death around 30 days in untreated mice for each model, treated daily with intraperitoneal anti-PD-L1 (1 μg per mouse) and monitored for survival. (n=8–10). Statistics were calculated with one-way ANOVA or t-test. Survival significance is calculated using log-rank test. *p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001 unless otherwise indicated. Data is presented as mean ± SEM