7 Days to Die’s b259 experimental build lands with new sandbox tools and fixes
Version V3.0.0 b259 EXP adds sandbox logging, WebAPI sandbox setting lookups, and a fallback branch for players still stuck on b252.

7 Days to Die has a new experimental build on deck in V3.0.0 b259 EXP, and it leans hard into sandbox support, UI work, and bug fixes. The Fun Pimps also added a latest_experimental_fallback branch for players who are still landing on b252 through the main experimental track.
To install it, players need to open Steam, right-click the game, head into Properties, and choose the Game Versions & Betas tab before selecting latest_experimental.
Patch Notes
Here is what changed since b257:
Added
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Print Sandbox settings to log on game start and provide a console command to list options (getsandboxoptions / gso)
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WebAPI “sandboxsettings” allowing looking up the current settings and custom codes, including all the sandbox settings details the UI provides
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Sandbox Option for Crouch Run Speed
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XUi system_time binding returning the current local DateTime to allow showing real world time on the UI
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XUi methods to register XML attribute/binding handlers for existing controllers and views
Changed
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Reworked Tempered Blade mod to have the same values as other block damage mods. 10-60% reduced to 5-30%.
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Reworked Ergonomic Grip mod to prevent stacking issues with other perks and items. 10-60% reduced to 5-30%.
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Reworked Fortifying Grip with logic to prevent it from working without food or water
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Siphoning Strikes and Bar Brawling Vol 5 will no longer work without food or water
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Updated tags on ammo to support Lucky Looter Vol 2 and Sandbox Options
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House_construction_02 replaced bear sleeper placement with animal boar for difficulty balancing
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Updated loot in industrial_strip_03 to have more automotive loot
Fixed
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Cannot use items from inventory after previous game session was interrupted
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Sandbox option Global Loot Stage does not affect loot stage
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Sandbox option Crouch Speed 300% is faster than Walk Speed 300%
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Sandbox setting Drop on Death Delete all does not work
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Sandbox setting Global Game Stage to Low will set starting game stage to zero
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Forge allows free recipe when Sandbox smelter type is selected
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Cannot pick up user-placed items at claimed trader
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Minimum speed was not using the speed modifier sandbox options correctly
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Crafting materials limit production of items when crafting cost is set to none
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Crafting Input not working for None
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Wrong tag on Cooking Grill allowing it to influence cook times when holding an additional grill
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XUi Color values outside of the allowed 0-255 range were not properly clamped but rather truncated
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Turret corrupts block space for other devices
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Replaced missing box collider on bat_Prefab
For players testing the experimental branch, this build reads like a cleanup pass with some useful quality-of-life additions baked in. Share your thoughts in the comments, and follow us on X, Bluesky, YouTube, Instagram for more updates.
Source: Steam
7 Days to Die
Developed by The Fun Pimps


