Island Progression Chart

Rank	Mammet Tools & Unlocked Plots	Cozy Cabin	Cropland & Pasture	Facilities	Landmark	Feature	Visions & Quests	Tool	Materials
1		Cozy Cabin I				Orchestrion	The Coziest of Cabins	Stone Hatchet	Pumpkin Seeds; Cabbage Seeds; Palm Leaf; Apple; Branch; Stone; Clam; Laver; Coral; Islewort; Sand; Log; Palm Log; Vine Sap
2			Cropland I Pasture I			Makeshift Net Small Animals	Top Crops Adorable Animals
3	(none) → Pathfinder Mk. I ⠀⠀⠀⠀⠀⠀⠀Facility Plot I, II			Workshop I	Towering Tree Fort Quixotic Windmill	Minion Release	A Workshop of Wonders	Stone Hammer	Copper Ore; Limestone; Rock Salt
4	Basic → Pathfinder Mk. II  ⠀⠀⠀⠀⠀⠀Landmark I	Cozy Cabin II	Cropland II Pasture II
5	Better → Pathfinder Mk. III   ⠀⠀⠀⠀⠀⠀Facility Plot III, IV   ⠀⠀⠀⠀⠀⠀Landmark Plot II			Granary I	Boiling Bathhouse			Shovel	Clay; Tinsand; Popoto Set; Parsnip Seeds Granary: Alyssum; Garnet; Spruce Log;  ⠀⠀⠀⠀⠀⠀Hammerhead; Silver Ore
6				Workshop II Granary II		Makeshift Restraint Medium Animals		Copper Scythe	Sugarcane; Hemp; Cotton Boll
7	Best → Pathfinder Mk. IV  ⠀⠀⠀⠀⠀Facility Plot V  ⠀⠀⠀⠀⠀Landmark Plot III Crop-worker's Pasture-workers	Cozy Cabin III	Cropland III Pasture III Automation					Bronze Gig	Islefish; Jellyfish; Squid Cropland: Isleberry Seeds; Onion Set; Tomato Seeds; ⠀⠀⠀⠀⠀⠀⠀Wheat Seeds; Corn Seeds; Radish Seeds
8				Workshop III Granary III		Makeshift Soporific Large Animals		Bronze Beakaxe	Quartz; Iron Ore; Leucogranite
9	Bestest → Pathfinder Mk. V  ⠀⠀⠀⠀⠀⠀⠀Landmark Plot IV				Lominsan Lighthouse Water Otter Fountain		The Perfect Paradise Passionate Pioneering The Land, Wind, and Sea	Iron Hatchet*	Resin; Coconut; Beehive Chip; Wood Opal
10						Flight			Multicolored Isleblooms
11									Cropland: Leek Set; Paprika Seeds
12	Spelunking → Determined Digger   ⠀⠀⠀⠀⠀Area: Mountain Hollow				Gamboling Garden		Delightful Discovery A Far Eastern Yarn		Glimshroom; Coal; Effervescent Water Granary: Cave Shrimp*
13		Cozy Cabin IV		Granary IV				Steel Hammer	Shale; Spectrine; Mythril Ore; Marble
14				Workshop IV					Cropland: Runner Bean Seeds; Beet Seeds; ⠀⠀⠀⠀⠀⠀⠀Eggplant Seeds; Zucchini Seeds
15	Bestestest → Pathfinder Mk. VI   ⠀⠀⠀⠀⠀⠀⠀⠀⠀Facility Plot VI   ⠀⠀⠀⠀⠀⠀⠀⠀⠀Landmark Plot V				Quaint Clock Tower Uncharted Course		The Land of Luxury A Subterranean Expansion An Ideal Marriage
16	Spl. Spelunking → Det. Digger ⠀⠀⠀⠀⠀⠀⠀⠀⠀Area: Mother Lode								Yellow Copper Ore; Hawk's Eye Sand
17		Cozy Cabin V						Mythril Pickaxe Chisel	Gold Ore; Durium Sand; Crystal Formation
18				Granary V					Cropland: Watermelon Seeds; Sweet Popoto Set; ⠀⠀⠀⠀⠀⠀⠀Broccoli Seeds; Buffalo Bean Seeds
19				Workshop V	Sanctuary Sanctuary Aetherial Arbor	Felicitous Favors	An Idyllic Island The Sweetest Thing
20						Flawless Net Flawless Restraints Flawless Soporifics