Early-Game Priority: Basic Egg + Frozen Egg
In the first 30 minutes, the Basic Egg ($1,000) and the Frozen Egg (free from DINOSLOVESU) are your two best options. The Basic Egg gives you a guaranteed Stegosaurus slot, while the Frozen Egg has a 10% chance at a Legendary Ankylosaurus.
Mid-Game Priority: Island Egg
Once you have $75,000,000 in Cash, switch entirely to Island Eggs. The 15% Dasaur Legendary roll at $7,800 visitor yield is the best YCE ratio in the standard track — Dasaurs alone will fund your 50-plot Rebirth threshold.
Late-Game Priority: Mythic Egg
Once your Teeth bank exceeds 500, buy the Mythic Egg. Prime Rex (65% roll) and Kraken (35% roll) are the only dinosaurs that survive Rebirth at their full trade value, making them the single most important long-term investment.
Eggs to Avoid
The Aquatic Pack ($100M for 6 cards, $910 yield each) is mathematically worse than the Island Egg even though it costs more. The Basic Egg stops being worth it once you have at least one Rare-tier dinosaur in your enclosure.