To use the Turret in Sol’s RNG, complete Lime’s event quest, wait for the Ice Beam Cannon to charge, then open the Weapon Control Panel and fire either a 100% Normal Shot or a 200% Overcharge Shot at the Sun for Summer Points and event rewards.
The Turret is the Summer Event’s headline mechanic, and it runs on stored charge rather than free firing — so knowing when to shoot, and when to save up for a bigger hit, is the whole decision. This walks through unlocking it with Lime, letting it charge, and choosing between a Normal Shot and an Overcharge once you’re ready to hit the Sun.
What the Event Turret is for

The Event Turret — shown in-game as the Ice Beam Cannon — is the centerpiece of the Sol’s RNG Summer Event. It sits in the event area beside the NPC Lime and fires at the event’s Sun, with every shot lowering the event’s global heat. That progress shows on the Global Heat Lowered board, which climbs toward a 50 trillion goal as players keep firing. Because it runs on a charge system, the payout of any shot is tied to the damage it lands.
How to use the Turret in Sol’s RNG
Follow this order to go from a locked turret to a live shot at the Sun.
Complete Lime’s quest

Find Lime in the event area and finish the quest "A sweltering summer" to unlock the turret.
Let the turret charge up

The turret fills its own charge over time, so keep playing until at least one bar is full.
Open the Weapon Control Panel

With a full bar stored, open the turret’s Weapon Control Panel to line up a shot.
Fire a Normal Shot at 100%

Spend one full bar to launch a single shot at the Sun.
Overcharge at 200% for two shots

Bank two full bars, switch Overcharge ON, then fire two shots at once for more damage.
Video help
Normal Shot versus Overcharge
| Shot type | Charge needed | Effect |
|---|---|---|
| Normal Shot | 100% (one full bar) | Fires a single shot at the Sun. |
| Overcharge | 200% (two full bars) | Toggle Overcharge ON to fire two shots at once for double damage. |
The turret gives you two ways to fire, and they differ only in how much charge they burn and how hard they hit.
Let two full bars build before you fire. With daily shots capped, an Overcharge turns one of those limited uses into double the damage — and double the payout — of a single Normal Shot.
Charge, biome, and time-of-day scaling
The turret’s charge doesn’t fill at a flat rate. How fast a bar tops off depends on your active biome and the in-game time of day, so where you sit and when you play both change how quickly your next shot comes online. Charge is stored as full bars, and there are no fixed charge-per-second figures to plan around — check the bar itself before committing to a shot.
Rewards and upgrading the turret

Every shot hits the Sun and pays out based on the damage it deals, so a harder-hitting shot returns more in a single use. You earn Summer Points and Event Overlock — the event’s aura-luck reward — to help you progress through the Summer Event. Summer Points are also the currency for improving the turret: spend them to raise the Ice Beam Cannon’s level (it starts at Level 1 in the Weapon Control Panel), and each level pushes its damage higher for better results on future shots.
If the turret will not fire
Check Lime’s quest is done

The Weapon Control Panel stays locked until “A sweltering summer” is complete.
Confirm you have a full bar

A Normal Shot needs 100% and an Overcharge needs 200%; a partial bar won’t fire.
Check the Overcharge toggle

For a double shot, Overcharge must be switched on before firing, or it goes out as a single shot.
Watch your daily uses

Shots are capped each day, so a spent turret won’t fire again until the limit resets.
Related Sol’s RNG guides
Frequently Asked Questions
Where do I find Lime in Sol’s RNG?
Lime is the quest-giver NPC standing in the Summer Event area, right by the turret itself. Talk to Lime to pick up “A sweltering summer,” and once it’s done you can use the turret on the spot without traveling anywhere.
How much charge do you need to fire the turret?
A Normal Shot needs a full bar at 100%, and an Overcharge needs two full bars at 200%. You can’t fire on a partial bar — the shot only becomes available once a bar is completely full.
What does Overcharge do?
It fires two shots in one use for double the damage of a Normal Shot. You have to switch Overcharge ON in the panel before firing, otherwise the turret sends out a single shot as normal.
Does the turret charge automatically?
Yes. Charge builds passively with nothing to collect by hand, and it keeps filling while you do other things in the event — you just need to come back once a bar is ready.
What rewards do you get from firing the turret?
Each shot pays Summer Points and Event Overlock scaled to the damage it lands, so a bigger hit returns more. Those Summer Points double as the currency for upgrading the turret.
More questions⤵
Why is the turret not firing?
The usual causes are an unfinished Lime quest, not enough charge for the shot you picked, an Overcharge toggle left off, or a daily shot limit you’ve already hit — check those four in that order.







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