Last Epoch Building vs Voidforge

Last Epoch Building is a free build planner and DPS calculator for Last Epoch. Its Windows desktop application works offline, and a separate Weaver Tree planner runs in a browser. The planner covers passive trees for every class and mastery, along with every skill tree and its nodes. It models damage for hits, triggered skills, minions, conversion and ailments, plus defenses including armor, dodge, block, ward, resistances and endurance. Equipment planning covers crafting and items such as uniques, legendaries, set items, idols and blessings. Characters can be imported from a save file, Maxroll or a Last Epoch Tools planner link. Builds can be shared by short link or offline code, with Markdown notes and live preview. The maker says calculations are checked against imported saves but cautions that the planner is a model and the game takes precedence if they disagree. Compatibility is verified for Last Epoch 1.4.7, with limited support for 1.2 and 1.3. The project has no accounts, advertising or analytics.

Voidforge is a free web-based Warframe build planner and theorycrafting toolkit. It calculates stats in real time and provides damage simulations with faction-specific time-to-kill estimates. Builders cover weapons, Warframes, companions, Archwing, Necramechs, Railjack, and modular weapons. The Weapon Builder handles mods, arcanes, rivens, and Incarnons, then reports burst and sustained DPS, status breakdowns, and elemental combinations. Its Damage Simulator includes Viral and Corrosive effects, damage over time, and armor reduction. A Codex lists mods, arcanes, Archon Shards, weapons, and Warframes with effects and data coverage. Users can save builds locally or to an account, import or export loadouts, publish builds, browse and upvote community loadouts, and share profiles. There is no paywall or premium tier; donations are optional. The project is MIT-licensed open source, but its repository is not intended for self-hosting.