Last Epoch Building

Last Epoch Building is a detailed character planner and damage calculator for Last Epoch. It is best for players who want to model complete builds, including gear and defenses, rather than only sketching a passive tree. The Windows app and browser planner make it flexible, although its calculations should be treated as planning estimates and its strongest compatibility is tied to a specific game version.

Overview

The tool brings character development, equipment choices, crafting, and combat calculations into one build workflow. You can import a character from a save file or through Maxroll, and the homepage also accepts Last Epoch Tools planner links. Builds can be shared with a short link or an offline code, while Markdown notes with live preview provide a place to explain decisions alongside the setup.

Privacy is a clear strength: the maker says there are no accounts, advertising, or analytics. That suits players who want to plan without creating a profile or using an ad-supported service. The project is made by uta666, a one-person developer working in their own time, so feedback, bug reports, and feature requests are handled through the project's contributing information.

Key features

Build and skill planning

Passive trees cover every class and mastery, and every skill has a tree with full node support. This is useful for comparing complete specialization paths instead of relying on a partial or simplified skill view. Equipment simulation includes uniques, legendaries, set items, idols, and blessings, and crafting simulation lets you examine item decisions before committing resources in the game.

Damage and defenses

The DPS calculator models ordinary hits, triggered skills, minions, conversion, and ailments. Defensive modeling covers armor, dodge, block, ward, resistances, and endurance. That breadth matters for builds whose damage and survivability depend on several interacting mechanics; a simpler tree planner would not answer those questions.

Imports, sharing, and data limits

The Windows desktop planner works offline, while the Weaver Tree planner runs in a browser for a lighter, no-install planning option. The project says its game data comes from the game's files and that calculations are checked against imported real saves, but it also states that the planner is a model. If its result conflicts with Last Epoch, the game is authoritative. It is verified compatible with Last Epoch 1.4.7, with limited support for 1.2 and 1.3 builds, so players on other versions should be cautious about relying on precise results.

Pricing

Last Epoch Building is free. The Free plan costs nothing and includes the planner, skill-tree planning, equipment and loadout simulation, and build sharing. There is no account requirement, advertising, analytics, or paid feature gate described, and there is no free trial because the product itself is free. This is a straightforward fit for occasional planners and theorycrafters alike, with no subscription or renewal term to manage.

Platforms

The full planner is a Windows desktop application that works offline. The Weaver Tree planner is available in a web browser, giving users a convenient option when they only need tree planning. Linux users can run the Windows build through Wine, but that route is community-tested rather than officially supported. No macOS or mobile version is provided.

Who it's for

Choose it if you play Last Epoch and want one place to examine passive and skill nodes, simulate equipment and crafting, calculate offense, and check layered defenses. It is particularly suited to players who value offline use, private planning without an account, or detailed notes and shareable build codes.

It is less suitable if you need official support on Linux, macOS, or mobile, or if your game version falls outside the verified 1.4.7 release and limited 1.2/1.3 support. Players who require guaranteed in-game accuracy should also use its outputs as estimates rather than final authority.

Pros and cons

Pros

• Broad simulation: combines every class and mastery tree, full skill nodes, gear and crafting, DPS scenarios, and major defensive layers.
• Offline and browser access: the Windows app works offline, while Weaver Tree provides a browser-based entry point.
• Private sharing: no account, advertising, or analytics, with short-link and offline-code sharing plus Markdown notes.
• Free without gates: the 0.00 USD plan includes the core planning and sharing features without a subscription.

Cons

• Version sensitivity: compatibility is verified for 1.4.7, with only limited support for 1.2 and 1.3.
• Model rather than authority: disagreements are resolved in favor of the game, so calculated results can require verification.
• Windows-first distribution: Linux use through Wine is unofficial, and no macOS or mobile platform is offered.
• Small-maker dependency: the project is maintained by a one-person developer, which may limit support capacity.

Alternatives

For a broader directory of planning tools, browse Game Build Planners.

D4Planner is the better choice for Diablo IV players who need Android, iOS, or web access; it is free but ad-supported and is not affiliated with Blizzard Entertainment.

Pick PoB Redux instead for a free desktop planner spanning Linux, macOS, and Windows.

Arrow to the Build suits Windows 10/11 users seeking a free, open-source planner.

Use Elden Ring Build Planner for a browser-based Elden Ring tool with no account or download.

GW2Skills is the relevant free web and API option for Guild Wars 2 builds.

Last Epoch Tools is a free web alternative focused on fan-site tools and content.

LoadoutDB is a free public reference site with no accounts or subscriptions.

Starfield Build Planner is the free browser choice for Starfield planning, supported by third-party advertising.

Verdict

Last Epoch Building is a strong choice for Last Epoch players who want detailed, private build theorycrafting with offline Windows access, gear simulation, and serious damage and defense modeling. Choose it for the breadth of its planner and its no-account cost. Look elsewhere if you need officially supported non-Windows software, broader version coverage, or certainty beyond a model that can differ from the game.