Atomic Heart is a first-person action shooter set in an alternate-history Soviet Union where advanced robotics and polymer technology have created a utopian society that goes horribly wrong. The Polymer Glove gives protagonist Agent P-3 elemental powers (electricity, ice, telekinesis) that combo with firearms and melee weapons for devastating synergies. Combat blends BioShock-style power/weapon combos with melee action inspired by souls-like timing. The open-world sections between story facilities hide optional dungeons called Testing Grounds filled with challenging puzzles and powerful loot.
Your choice of weapons defines your damage output and playstyle. This guide ranks every major option, explains what makes each one strong, and tells you which builds they pair best with.
Weapons Rankings
| Weapon | Tier | Best For | Notes |
|---|---|---|---|
| Swede (Melee) | S | Cryo Build, Melee Brawler | Heavy melee weapon with slow but devastating charged attacks. |
| Electro (Pistol) | A | Shock Build, Balanced Hybrid | Energy pistol with unlimited ammo that recharges between shots. |
| KS-23 (Shotgun) | A | Telekinesis Build, Balanced Hybrid | High-damage shotgun effective at close-to-mid range. |
| Railgun | B | Shock Build, Balanced Hybrid | Charged energy weapon that fires a penetrating beam through multiple enemies. |
| Fat Boy (Launcher) | B | Boss fights only | Rocket launcher with massive area damage (600+ at impact point). |
S-Tier: Swede (Melee)
Heavy melee weapon with slow but devastating charged attacks. Fully upgraded, charged swings deal 280 damage. The Cryo mod adds freeze chance to each hit. Best used after stunning or freezing enemies to maximize safe attack windows.
| Attribute | Detail |
|---|---|
| Tier | S |
| Best For | Cryo Build, Melee Brawler |
| Key Mechanic | polymer glove abilities |
| Recommended Role | Shock Build |
How to get it: Available from mid-game onward. See our walkthrough for the exact progression point.
Best builds using Swede (Melee): Pairs naturally with Shock Build thanks to stat scaling synergies.
A-Tier: Electro (Pistol)
Energy pistol with unlimited ammo that recharges between shots. Shock mod creates chain-lightning that jumps between nearby enemies (up to 3 targets). Low per-shot damage but infinite ammo makes it the most sustainable weapon for long sessions.
| Attribute | Detail |
|---|---|
| Tier | A |
| Best For | Shock Build, Balanced Hybrid |
| Key Mechanic | weapon crafting |
| Recommended Role | Cryo Build |
How to get it: Accessible in the early-to-mid game. Check our maps guide for the location.
Best builds using Electro (Pistol): Pairs naturally with Cryo Build thanks to stat scaling synergies.
A-Tier: KS-23 (Shotgun)
High-damage shotgun effective at close-to-mid range. 4-round magazine with slow reload. Each pellet applies elemental effects independently, so a shock-modded KS-23 applies 8 shock stacks per shot. Devastating against large single targets.
| Attribute | Detail |
|---|---|
| Tier | A |
| Best For | Telekinesis Build, Balanced Hybrid |
| Key Mechanic | NORA upgrade stations |
| Recommended Role | Telekinesis Build |
How to get it: Accessible in the early-to-mid game. Check our maps guide for the location.
Best builds using KS-23 (Shotgun): Pairs naturally with Telekinesis Build thanks to stat scaling synergies.
B-Tier: Railgun
Charged energy weapon that fires a penetrating beam through multiple enemies. Full charge deals 450 damage in a line. Requires 3 seconds of charging, leaving you vulnerable. Best used from cover against lined-up enemies.
| Attribute | Detail |
|---|---|
| Tier | B |
| Best For | Shock Build, Balanced Hybrid |
| Key Mechanic | scanner system |
| Recommended Role | Melee Brawler |
How to get it: Found in later areas. Our walkthrough covers when you can access this.
Best builds using Railgun: Pairs naturally with Melee Brawler thanks to stat scaling synergies.
B-Tier: Fat Boy (Launcher)
Rocket launcher with massive area damage (600+ at impact point). Limited ammo and slow reload make it a boss fight weapon rather than general use. The splash damage can hurt you — fire from safe distance.
| Attribute | Detail |
|---|---|
| Tier | B |
| Best For | Boss fights only |
| Key Mechanic | combo attacks |
| Recommended Role | Balanced Hybrid |
How to get it: Found in later areas. Our walkthrough covers when you can access this.
Best builds using Fat Boy (Launcher): Pairs naturally with Balanced Hybrid thanks to stat scaling synergies.
Weapons Progression Path
The order you should acquire weapons as you progress:
- Starting gear → Enough to clear Facility 3826
- Electro (Pistol) → Your first real upgrade, available early
- KS-23 (Shotgun) → Mid-game upgrade with good scaling
- Swede (Melee) → Best-in-slot, aim for this by late game
- Upgrade to max → The power spike from max upgrades is enormous
Weapons Tips
- Always upgrade your primary weapon before diversifying — one strong option beats three mediocre ones.
- Match your weapons to your build's stat priorities for maximum scaling.
- Shock + water is the strongest combo in the game. Shock a water puddle to electrify the entire surface, dealing 3x damage to every enemy standing in it.
- Check our tier list for how weapons rankings affect overall build effectiveness.
More Atomic Heart Guides
- Atomic Heart Atomic Heart Overview
- Atomic Heart Best Builds
- Atomic Heart Tier List
- Atomic Heart Walkthrough
- Atomic Heart Beginner's Guide
- Atomic Heart Tips & Tricks
- Atomic Heart Combat Guide
- Atomic Heart Boss Guide
- Atomic Heart Maps & Locations
- Atomic Heart Crafting Guide
- Atomic Heart Classes & Characters
Similar Games
If you enjoy Atomic Heart, check out these related guides:
- Counter-Strike 2 Weapons Guide — fps game with similar mechanics
- Apex Legends Weapons Guide — fps game with similar mechanics
- Rainbow Six Siege Weapons Guide — fps game with similar mechanics
