Why Plan a Build Before Forging It
Gear in TerraX is expensive in the only currency that matters: time. A Noble Longsword is a Heart of Thornaxis plus a multi-hour forge; a full Adamantium set is four boss artefacts and days of smelting. The build planner exists so none of that is spent on a guess. Set your level, try gear in every slot, and read the consequences off the same arithmetic the server runs.
The Stats, and Where Each One Comes From
Attack damage, accuracy, crit chance, crit damage and attack speed all live on the weapon, with gear modifiers adding percentage attack damage and flat crit on top. Defense sums the defense points of your armour, shield, ring and amulet, and damage reduction converts that through defense/(defense+450), scaled by any percentage DR modifiers and capped at 95%. Evasion comes only from gear modifiers. Health is 100 plus one per level plus flat HP bonuses, and energy is 250 plus ten per level. Full mechanics live in the FAQ and the raid guide.
Reading the Raid Projection Honestly
The projection collapses the raid's randomness to its averages, so treat it as a expectation, not a promise: real fights roll 15% damage variance both ways, crits streak, and raid events can swing a round by a third. What it is reliable for is comparison. If build A projects 40% more damage per round than build B, that gap is real. If your rounds survived sits below the typical 57-round kill even with ten potions, bring more damage reduction before you bring more damage, because dead characters deal none. The math behind every number is documented against the server source in our code, and the balance data is the same JSON that seeds the game.
Questions Players Actually Ask
Does this calculator use the game's real formulas?
Yes. Every formula is ported 1:1 from the server's stat pipeline: attack damage is weapon damage plus ceil(damage x extraAttackDamage%), damage reduction is defense/(defense+450) x 100 scaled by gear DR modifiers and capped at 95%, crit and accuracy live on the weapon, and evasion is a pure gear-modifier sum. The data comes from the same balance files that seed the live game.
How is damage reduction calculated in TerraX?
DR = defense/(defense + 450) x 100, then multiplied by (1 + damageReduction modifiers/100), hard-capped at 95%. Defense sums the defensePoints of your four armour pieces, shield and accessories. Because of the 450-point inflection, DR percentage modifiers on gear like the Aetherguard set are usually worth more than raw defense points.
What do the raid projection numbers mean?
They run the world-boss battle math in expectation: swings per 30-second round are 30,000 divided by your weapon's attack speed, hit chance is clamped between 50% and 95%, and each committed potion adds half your max HP to your effective pool. If Rounds Survived exceeds the typical 57-round kill, this build finishes the fight standing and earns the 15% survivor bonus on its damage share.
Why does a faster weapon sometimes beat one with higher damage?
Damage per round is swings x hit chance x damage x crit multiplier, and swings are 30,000/attackSpeedMs. A 169-damage weapon at 2,700ms lands 11.1 swings a round while a 188-damage weapon at 3,000ms lands 10, which nearly cancels the damage gap before accuracy and crit are counted.
Are follower beast bonuses included?
Not yet. In the game, an equipped follower multiplies your crit chance by up to 10% of its own value and evasion by up to 6%, scaled by the beast's rarity and stats. Treat the planner's crit and evasion as your floor; a good follower nudges both upward.
Is the build planner free? Do I need an account?
Completely free, no account, runs entirely in your browser. It exists so you can decide what to forge before spending the materials.
