Right-click a fishing rod made with this mod and call down an orbital strike on the block you're aiming at.
There are two kinds.
stab shot rains TNT down through every solid block in the column under the target. Drills straight through mountains.
nuke shot spawns a wide ring of TNT high above the target. The TNT fans outward as it falls, then detonates.
stab shot: a fishing rod with TNT in the up, down, left, and right slots.
nuke shot: a fishing rod surrounded by TNT in all eight slots around it.
Each TNT slot needs 32 TNT by default. You can lower or increase this in the config.
On Fabric you can edit every setting from inside the game. Open Mods, pick Simple Orbital Strike, click the gear icon. You need Mod Menu installed for the gear to show up.
What you can change:
/orbitalstrikeNeoForge ships with the same defaults. A built-in NeoForge config screen is coming in v1.0.8.
Fabric, Quilt, and NeoForge.