OneHand

OneHand

One hand. Two tools. Keep climbing.

A challenge mod for White Knuckle Beta 0.61. Choose which hand to keep before a new run, then climb and use every item with that hand alone.

Features

• Choose left or right: set your difficulty and trinkets, press Play, then answer "Which will you keep?" The selected hand stays for the entire run.
• 2.5x stamina: increased stamina capacity and all positive stamina gains, including recovery from food, perks and regeneration. Stamina costs stay the same.
• Two quick slots: keep two items ready and switch between them in your remaining hand. Items retain their normal state and ammunition.
• Piton and hammer support: place the piton, switch to your hammer, then hammer it in with the same hand.
• Minimalist presentation: native game font, underlined choices, trembling letters and yellow/red hover effects. No extra bottom panel.
• A seamless start: after your choice, "Choice made" trembles and fades into black while the run loads. The selection sound continues across the transition.
• Saved runs: continuing a saved run restores your hand and quick-slot selection without asking again.

Installation

Mod manager

Install OneHand through Mod Manager or r2modman, allow the BepInEx dependency to install, and launch the game with mods enabled.

Manual

• Install BepInExPack 5.4.2305 for Unity Mono if you do not already have it.
• Close the game and copy the package's BepInEx folder into your White Knuckle game folder, next to the game executable.
• Confirm that the plugin is at BepInEx/plugins/OneHand/OneHand.dll.
• Launch the game, choose your difficulty and trinkets, and press Play.

When updating manually, replace the old DLL instead of keeping a second copy in plugins. The sound is embedded in the DLL; no separate audio installation is needed.

Controls

| Action | Control |

| --- | --- |

| Choose the hand to keep | left or right after Play |

| Return to run settings | back, Esc or the game's Back button |

| Navigate the selection screen | Mouse, arrows / controller navigation, or Tab |

| Use quick slot 1 | 1 or the native first-pocket control |

| Use quick slot 2 | 2 or the native second-pocket control |

| Switch between items | The game's swap-hands control |

| Put the current item away | Press its slot key again |

| Climb, pick up and use items | The selected hand's normal controls |

Set up two tools

• Pick up a piton with your remaining hand and press 1 to store it.
• Pick up a hammer and press 2 to store it.
• Press 1 or 2 to equip the corresponding item. Switching returns the current item to its slot.
• Press the same key again to free your hand for climbing.

Release your grip before equipping an item. Normal item restrictions still apply; a switch may wait for reloading or item use to finish.

Configuration

After the first launch, settings are stored in BepInEx/config/ilya.whiteknuckle.onehand.cfg.

| Setting | Purpose |

| --- | --- |

| [Run] Enabled | Enable or disable OneHand for a new run |

| [Run] Hand | Last selected hand; a new run still asks you to choose |

| [Controls] Slot1 / Slot2 | Additional quick-slot key bindings; defaults are 1 / 2 |

To disable the mode, close the game and set Enabled = false in the [Run] section. To uninstall manually, remove BepInEx/plugins/OneHand.

Compatibility and support

Built for White Knuckle Beta 0.61 with BepInEx 5 (Unity Mono). Other game versions and mods that replace hand, inventory, stamina or run-start behavior have not been verified.

For bug reports, include your game version, the selected hand, steps to reproduce the problem and BepInEx/LogOutput.log from that run. Plugin messages are tagged OneHand.

Source code and build instructions are included in Source. Russian documentation is included in README_RU.md.