Megalodon Carnivores saddle unlocks at level 47 
Cave Crate (tier 3) level 40+ · 3 spawn points · can be a blueprint 100% 
Ice Cave Crate (tier 2) level 40+ · 5 spawn points · can be a blueprint 100% Swamp Cave Crate (tier 2) level 40+ · 3 spawn points · can be a blueprint 100% 
Underwater Cave Crate (tier 1) level 50+ · 25 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 9 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 9 spawn points · can be a blueprint 100% Supply Drop (level 60, double) level 60+ · 55 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 60 spawn points · can be a blueprint 100% and 7 more crates here
Underwater Cave Crate (tier 1) level 50+ · 71 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 71 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 71 spawn points · can be a blueprint 100% Supply Drop (level 60, double) level 60+ · 250 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 250 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 2) level 60+ · 71 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 2) level 60+ · 71 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 3) level 70+ · 71 spawn points · can be a blueprint 100% and 5 more crates here
Cave Crate (tier 3) level 40+ · 38 spawn points · can be a blueprint 100% Swamp Cave Crate (tier 2) level 40+ · 16 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 56 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 56 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 213 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 213 spawn points · can be a blueprint 100% Supply Drop (level 45) level 45+ · 417 spawn points · can be a blueprint 33.3% Supply Drop (level 45) level 45+ · 417 spawn points · can be a blueprint 33.3% and 3 more crates here
Cave Crate (tier 3) level 40+ · 36 spawn points · can be a blueprint 100% Ice Cave Crate (tier 2) level 40+ · 5 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 31 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 31 spawn points · can be a blueprint 100% Supply Drop (level 60, double) level 60+ · 351 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 351 spawn points · can be a blueprint 100% Supply Drop (level 45, double) level 45+ · 351 spawn points · can be a blueprint 33.3% Supply Drop (level 45) level 45+ · 351 spawn points · can be a blueprint 33.3% and 3 more crates here
Cave Crate (tier 3) level 40+ · 2 spawn points · can be a blueprint 100% Swamp Cave Crate (tier 2) level 40+ · 2 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 1 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 1 spawn points · can be a blueprint 100% Supply Drop (level 60, double) level 60+ · 90 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 90 spawn points · can be a blueprint 100% Supply Drop (level 45, double) level 45+ · 279 spawn points · can be a blueprint 33.3% Supply Drop (level 45) level 45+ · 279 spawn points · can be a blueprint 33.3% and 3 more crates here
Cave Crate (tier 3) level 40+ · 18 spawn points · can be a blueprint 100% Swamp Cave Crate (tier 2) level 40+ · 14 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 11 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 11 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 2) level 60+ · 1 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 2) level 60+ · 1 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 3) level 70+ · 1 spawn points · can be a blueprint 100% Underwater Cave Crate (tier 3) level 70+ · 1 spawn points · can be a blueprint 100% and 1 more crates here
Cave Crate (tier 3) level 40+ · 26 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 7 spawn points · can be a blueprint 100% Cave Crate (tier 4) level 55+ · 7 spawn points · can be a blueprint 100% Supply Drop (level 60, double) level 60+ · 46 spawn points · can be a blueprint 100% Supply Drop (level 60) level 60+ · 50 spawn points · can be a blueprint 100% Supply Drop (level 45, double) level 45+ · 125 spawn points · can be a blueprint 33.3% Supply Drop (level 45) level 45+ · 138 spawn points · can be a blueprint 33.3% 
Supply Drop (level 55, double) level 55+ · 149 spawn points · can be a blueprint 33.3% Supply Drop (level 55) level 55+ · 154 spawn points · can be a blueprint 33.3% No tips here yet — be the first survivor to leave one.
Leaving tips is for survivors on the rewards list — reserve your rewards with your e-mail once and the form unlocks everywhere.
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Allosaurus Saddle 
Amargasaurus Saddle 
Andrewsarchus Saddle 
Ankylo Saddle 
Araneo Saddle 
Argentavis Saddle 
Arthropluera Saddle 
Astrocetus Tek Saddle 
Astrodelphis Starwing Saddle 
Baryonyx Saddle 
Basilisk Saddle 
Basilosaurus Saddle