Final Swarm Skill Tree and Keys — priority order, chest EV, and the 8-node optimizer

The Final Swarm Skill Tree is the only system that compounds across runs. Eight named nodes, a community-corroborated priority order, and a chest EV ladder that decides when to bank into chests instead of nodes. This pillar explains the priority, the chest math, and the VIP gamepass multiplier, and points to the deeper articles for each branch.

The eight Skill Tree nodes

The community-corroborated priority order is identical across NerdsChalk and Roonby: Damage → Max Health → Defense → Player Speed → Pickup Range → Attack Range → Remaining nodes → Luck. Per-rank multipliers and caps are not published by Evolution Studio Games; the official community site acknowledges that “Skill Tree details are still incomplete — node names, effects, stacking rules, caps, and reset behavior were not captured from the game or a creator page.” Treat per-rank values as player-entered scenarios in the calculator, not as official numbers.

Chest EV table

The chest loot ladder is Wooden → Rare → Epic → Mythical. The expected Keys value per opened chest tier is:

The chest EV is a player-entered scenario in the Skill Tree optimizer — every calculator field is editable so you can stress-test against your own observed drop rates. The numbers above come from the spec document; treat them as guidance, not as a published Evolution Studio Games rate.

VIP gamepass multiplier

The VIP gamepass costs R$799 and grants:

• +30% Keys earned across every run (per the live Roblox game-passes API pull and Earnaldo’s monetization guide).
• Daily Legendary Chests in the Lobby.
• OP Aura Weapon and Crown Helmet cosmetic rewards.
• In-Game Title cosmetic.

The +30% Keys multiplier is the load-bearing economic effect. For an active player, it cuts the time-to-Ultra for the Skill Tree by roughly 23% (1 / 1.30). For a casual player, the daily chests alone may not justify R$799.

When to bank into chests vs. the Skill Tree

The decision rule from the spec:

• If rank[Damage] < 5, bank into the Skill Tree regardless of chest EV.
• Otherwise, compare the next Skill Tree rank’s projected delta (in Keys-equivalent) against the highest chest EV.
• If you have hit the cap on every Skill Tree node, route every Key into Mythical chests.

The chest EV vs Skill Tree article walks through the decision tree in detail, including the Mythical-vs-Rare trade-off and the Wooden-vs-keys tradeoff for low-balance players.

Glass-cannon warning

If rank[Damage] ≥ 25 but rank[Max Health] < 5, the build is a glass cannon. The build clears Waves 1–7 fast but dies on the Wave 8 boss and the Purple ghost phase. The Skill Tree respec and rebalancing article walks through the rebalance path and the missing official respec mechanic.

How to use the Skill Tree optimizer

1. Open the Skill Tree and Key Spending Optimizer.
2. Enter your current Keys balance and your current rank on each of the eight nodes.
3. Set the world and VIP flag to match your account.
4. The calculator returns the next-best node, the projected stat delta, the chest EV table, the recommended progression path, and any respec warnings.

The optimizer implements all eight edge cases (EC-01 through EC-08) from the spec: empty balance, capped nodes, glass-cannon rebalance, VIP clamping, Luck boost in Mythicals, Pickup Range boost in Jungle, invalid input clamping, and user-supplied delta overrides.

Sources and verification

The priority order and node list are cross-confirmed across NerdsChalk and Roonby. The chest EV table is taken from the optimizer spec and treated as a player-entered scenario. The VIP +30% Keys multiplier and the Quick Chest Open gamepass pricing are confirmed by the live Roblox game-passes API pull on 2026-07-30. All claims on this page were last verified on 2026-08-01.