In 'VAMPIR', reaching level 34 unlocks the chance to farm diamonds from defeated monsters. You can earn up to 1,000 per week, with a hard cap of 5,000 in your possession. These 'Farming Diamonds' are treated as a distinct currency. Since they don't quite function like standard diamonds, you'll need to figure out where to dump them. Luckily, KookminTree has done the legwork to rank your spending priorities.

Top priority: Expand those inventory slots.

Your first port of call should be inventory expansion. 'VAMPIR' splits inventory into weight and slots. While weight is managed via leveling, collections, and higher-tier mounts, slots only grow with diamonds. It is vital to avoid the slot penalty.

Once your slots are full, you trigger a penalty that stops you from picking up any loot. Given that every piece of gear takes up one slot, you have likely felt the frustration of a full bag while grinding. The weight limit is much more forgiving; it hits in two stages. At 100%, you lose quality-of-life features like teleporting, but the actual loot-drop penalty doesn't kick in until you hit 120%.

This is especially true during the 8-hour 'Offline Mode'. When you're actively playing, you can manage your loot, but in offline mode, you're flying blind. You can set a loot rarity filter, but since collections are vital right now, that's a risky game. Invest in those slots. Also, keep an eye on potion weight—it adds up faster than you think.

The 'Black Market' trade: A weekly bargain at 150 diamonds.

Next, head to the 'Shop - Exchange - Diamonds' tab to snag the 'Poame's Garter Belt'. It costs 150 diamonds per server, per week. Hand this over to the Black Market merchant to receive 'Dark Merchant Coins'. The yield is randomized: 1,250, 1,500, 1,750, 2,000, or 2,500 coins.

Use these coins to buy collection-exclusive items under 'Shop - Exchange - Dark Merchant Coins'. Prioritize the 'Dark Merchant Contract' and 'Ancient Relic Box'. The relics inside are essential for your collection, offering non-negotiable stat boosts like attack power, accuracy, bonus damage, defense, and evasion. Treat that 150-diamond weekly spend as a fixed cost.

Purchasing character slots for your alt army.

Finally, we have character slot expansions and weekly packs. These are mid-to-late game investments. Only commit here when you are nearing the 5,000-diamond cap, as any earnings beyond that are effectively wasted. Always track your weekly intake.

A character slot expansion ticket costs 2,500 diamonds. Since achievement rewards in 'VAMPIR' are tracked per character, running alts is the best way to farm rare blood forms and mounts. If your inventory is sorted and the 150-diamond black market trade is covered, put your surplus here. Since you can only farm 1,000 diamonds a week, expect to save for three weeks to afford one.

Then there are the weekly shop items. The 'Weekly Form Summon Pack' and 'Weekly Mount Summon Pack' (each 1,900 diamonds, including 11 special summons) or the 'Weekly Artifact Enhancement Pack' (3,800 diamonds). These require two to four weeks of saving. If you're planning to spend your farming diamonds here, do the math carefully before you commit.