MCseedFinder
MCseedFinder is a free Linux command-line tool for Minecraft Java Edition 26.2 seed searches.
What MCseedFinder is
MCseedFinder is a free Linux command-line tool for Minecraft Java Edition 26.2 seed searches. It filters seeds against conditions for the spawn biome, nearby biomes, structures, structure pieces, and the number of eyes already in the nearest stronghold portal frame. You can scan a seed range sequentially or use randomized searching across the signed 64-bit seed space without repeats. Searches use all logical CPU cores by default, with a configurable thread count. Linux x86_64 builds can optionally add CUDA or ROCm/HIP acceleration, while the default build does not require a GPU SDK. JSON configuration handles complex searches, and JSON Lines output lets other programs process results. The repository includes its world-generation implementation, so building, running, and testing do not read or download Minecraft game files. Building requires Rust and a C11-compatible compiler. Searches cover the default world type only. Some structure pieces are partial, and approximate terrain or spawn landing results can differ from the game.
Good
- Free plan
- Sequential and randomized seed searches
- Biome, structure, and spawn filters
- JSON configuration and JSON Lines output
- CPU and optional Linux GPU acceleration
Watch out
- Linux platform only
- Default world type only
- Some structure-piece coverage is partial
- Terrain checks may differ from game
Who it suits
It suits Minecraft Java Edition players seeking seeds with specific biome, structure, spawn, or stronghold conditions. Linux users who can build Rust software and optionally use GPU acceleration may find its search controls useful.
Verdict
MCseedFinder offers focused seed filtering for Minecraft Java Edition 26.2, with flexible search modes and machine-readable output. Verify any result in Minecraft before long-term use, as some terrain and structure details are approximate.
The facts
Each one read from MCseedFinder's own pages, with the date it was checked.
What it does
- Accuracy limits
- The tool does not generate complete block chunks, so some spawn landing blocks and some approximate terrain checks may differ from the game.checked 8 Oct 2026
- Build requirements
- Building requires Rust and a C11-compatible compiler, and the first build fetches general Rust dependencies from crates.io.checked 8 Oct 2026
- Configuration and output
- The CLI accepts JSON search configurations and can emit JSONL output for other programs to process.checked 8 Oct 2026
- Game files
- The repository says its build, runtime, and tests do not read Minecraft JARs or game installation files, and it does not download game files during build or runtime.checked 8 Oct 2026
- GPU acceleration
- On Linux x86_64, users can build CUDA or ROCm/HIP variants; the default build does not require a GPU SDK.checked 8 Oct 2026
- GPU behavior
- GPU screening is conservative and the CPU path performs final checks of biome, terrain, structure layout, and other world conditions.checked 8 Oct 2026
- Intended users
- The project is for Minecraft Java Edition users who want to find seeds matching specific world-generation conditions.checked 8 Oct 2026
- License
- The repository identifies its license as MIT.checked 8 Oct 2026
- Local operation
- The world-generation implementation is included in the repository, and build, run, and test do not read Minecraft JARs or game installation files.checked 8 Oct 2026
- Parallel search
- Search defaults to using all logical CPUs reported by the system, and users can set the thread count.checked 8 Oct 2026
- Partial piece searches
- Pillager outposts currently expose only watchtowers and bastion remnants expose four implemented required pieces; several other structures support parent-structure searches only.checked 8 Oct 2026
- Performance
- Search uses all available logical CPU cores by default and can optionally use CUDA or ROCm/HIP GPU acceleration on Linux x86_64.checked 8 Oct 2026
- Purpose
- MCSeed Finder is a command-line seed filter for Minecraft Java Edition 26.2 that searches for worlds matching biome, structure, and structure-piece conditions.checked 8 Oct 2026
- Random search
- Random mode traverses the signed 64-bit seed space in a pseudorandom permutation without repeating seeds.checked 8 Oct 2026
- Search features
- Conditions can include spawn and nearby biomes, structures, structure pieces, and the number of eyes initially present in the nearest stronghold portal frame.checked 8 Oct 2026
- Search filters
- It can filter seeds by spawn biome, nearby biomes and structures, and specific structure pieces.checked 8 Oct 2026
- Search modes
- It supports sequential searches over a seed range and randomized searches across the 64-bit seed space.checked 8 Oct 2026
- Structure-piece limits
- Some structures have partial piece coverage, while mineshafts, mansions, ocean monuments, ocean ruins, ancient cities, trail ruins, trial chambers, and nether fossils support parent-structure searches only.checked 8 Oct 2026
- Suggested verification
- The README recommends confirming found seeds in Minecraft 26.2 before long-term use.checked 8 Oct 2026
- World compatibility
- Searches cover the default world type and do not support large biomes, data-pack-modified world generation, or custom dimensions.checked 8 Oct 2026
- World limits
- Searches cover the default world type and do not support large biomes, datapack-modified world generation, or custom dimensions.checked 8 Oct 2026
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