Bank

• The bank starts with 24 slots, one per distinct item.
• Common and uncommon items need a slot. Rare and better always fit, even past the limit, so a full bank never destroys a lucky drop.
• When a new common item has no room, the action stops ("Bank full"), offline too. In combat, common loot is skipped instead and the fight goes on.
• Crate contents, expedition cargo and harvests always fit.
• Expansions add +4 slots for gold, up to 400 slots. The first costs 2,000 gold and each one after costs 50% more (rounded to 100 gold).

Expansion costs

#	Slots	Cost (gold)
1	24 → 28	2,000
2	28 → 32	3,000
3	32 → 36	4,500
4	36 → 40	6,800
5	40 → 44	10,100
6	44 → 48	15,200
7	48 → 52	22,800
8	52 → 56	34,200
9	56 → 60	51,300
10	60 → 64	76,900
11	64 → 68	115,300
12	68 → 72	173,000
13	72 → 76	259,500
14	76 → 80	389,200
15	80 → 84	583,900
16	84 → 88	875,800
17	88 → 92	1,313,700
18	92 → 96	1,970,500
19	96 → 100	2,955,800
20	100 → 104	4,433,700
21	104 → 108	6,650,500
22	108 → 112	9,975,800
23	112 → 116	14,963,700
24	116 → 120	22,445,500
25	120 → 124	33,668,200