What to know:
- You do not unlock HE Grenade Tower from a menu right away; it appears only after a Wuling Protocol Datalogger pickup.
- The first required step is simply reaching the Wuling zone through the main story.
- The second required step is collecting a Protocol Datalogger in Wuling.
- After that pickup, the game unlocks new Towers, which includes HE Grenade Tower.
In Arknights: Endfield, you can treat this unlock as a two-part gate: story progress first, then one specific collectible in the right region. If you try to do the collectible part before you have access to Wuling, you’ll just be stuck.
Quick References
| Requirement | What you do | Result |
|---|---|---|
| Main story progress | Follow the main story until you arrive in Wuling zone | Wuling becomes available for exploration |
| Wuling collectible | Collect the Protocol Datalogger in Wuling | New Towers unlock, including He Grenade Tower |
HE Grenade Tower construction requirements
| Requirement | Category | Details |
| Blueprint Tier | Research | Basic AIC Plan III |
| Authority Level | Progression | Level 18 or higher |
| Power Consumption | Energy | 50 Units (Estimated) |
| Primary Material | Construction | Ferrium Plates and Electronic Components |
The exact unlock trigger
The video’s unlock condition is straightforward: HE Grenade Tower unlocks as part of the “New Towers” unlock that happens after you collect a Protocol Datalogger in Wuling. Nothing else is presented as required in that walkthrough (no crafting recipe, no separate research step, no extra quest turn-in).
How to unlock HE Grenade Tower (video-only steps)
Step 1
Push the main story until you complete Chapter I Process I, because that’s when Protocol Dataloggers become usable.
Step 2
After finishing Chapter I Process I, talk to Andre to receive the access authorization that enables Protocol Dataloggers.
Step 3
Continue the main story until it opens the route into the Wuling zone.
Step 4
In Wuling, locate and interact with a Protocol Datalogger (the balloon-man beacon) to collect its AIC Index.
Step 5
Check your newly available tower unlocks after collecting that Wuling Protocol Datalogger; this is when the He Grenade Tower becomes available as a newly unlocked tower.
Timing and checks
| Situation you’re in | What it means | What you should do next |
|---|---|---|
| You haven’t reached Wuling yet | You’re still before the story gate | Continue the main story until Wuling unlocks |
| You’re in Wuling but don’t have the tower | You likely haven’t collected the Protocol Datalogger yet | Go collect the Wuling Protocol Datalogger |
| You collected the Wuling Protocol Datalogger | The unlock trigger has been completed | Look for the newly unlocked Towers, including He Grenade Tower |
HE Grenade Tower progression rewards
The following table details the rewards and unlocks associated with completing the defense missions and research steps for this facility.
| Milestone Reached | Primary Reward | Secondary Rewards |
| Blueprint Research | HE Grenade Tower Blueprint | 1,500 T-Creds |
| First Deployment | 300 Operational EXP | 5 Tactical Records |
| Base Defense Success | 10 Wuling Stock Bills | 2 Weapon Upgrade Mats |
| Defense Achievement | Origeometry x5 | Endministrator EXP |
Finishing the unlock quickly
If you want the fastest path using only what’s in the video, do not detour into side activities: just reach Wuling through the main story, then immediately pick up the Protocol Datalogger there. That single pickup is the moment the HE Grenade Tower unlock happens in the walkthrough.
