Let Them Come: Onslaught

Survive the relentless offensive of the alien horde in Let Them Come: Onslaught, a sci-fi survival roguelite. The pursuit of the perfect build and an ever-expanding arsenal of abilities are the keys to your success.

Endure the relentless alien horde, craft the perfect build, and unlock an ever-growing arsenal of abilities to survive.

In Let Them Come: Onslaught, your survival depends on your ability to fend off a relentless offensive of alien creatures using a combination of strategy and skill. With rogue-lite elements in play, each playthrough will have different challenges and rewards, making it a unique experience every time.

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Multiple weapon unlocks

Unleash your inner action hero with weapons straight out of your favorite sci-fi flick, from flamethrowers to Photon Sabers and more. You can even nuke the site from orbit - it’s the only way to be sure. Each weapon brings a distinct playstyle, and upgrades let you stack up devastating combos. Whether you prefer crowd-clearing firepower, targeted precision, or life-saving shields, you can tailor your loadout for maximum carnage (and maximum style).

Deep replayability

No two runs are ever the same. Between battles, build craft and invest your hard-earned rewards to unlock and enhance new skills, refine your strategy, and push deeper into enemy territory. Experimentation is key—try different weapon synergies, combine special effects, and perfect your approach until your unstoppable build leaves nothing but alien rubble in its wake.

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Wave survival action

As the alien onslaught intensifies, your reflexes and tactics are put to the test. Survive long enough, and you’ll face towering bosses that demand every ounce of skill you’ve honed. It’s the ultimate showdown, straight from the adrenaline-drenched heyday of retro sci-fi action. Gear up, lock ‘n load, and get ready to Let Them Come, because the Onslaught is about to begin!

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Battle across worlds

Fight your way through four distinct environments. The map always changes, and many dynamic elements will challenge the player during runs. Special mini bosses that spawn when you don't expect them. Supply drops with helpful loot will spawn in the distance. And Random Missions will force the player to complete optional objectives if they want to reap the reward.

  • Fast-paced bullet heaven combat

  • Deep roguelite progression and build crafting

  • Procedural maps and dynamic events

  • Original synth wave soundtrack by Cartridge 87

  • Two playable characters: The Soldier and The Psychic

  • 4 distinct worlds and epic boss encounters

How long can you survive the Onslaught?

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Available Achievements

Full Power Unlocked
100 XP
Ready for Anything
30 XP
Planet Core Nuked
50 XP
Alien Maw Expert
50 XP
Unlocked Mind
30 XP

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Let Them Come: Onslaught System Requirements

Minimum

Recommended

OS version

Windows 10 (64bit versions required)

OS version

Windows 10 (64bit versions required)

CPU

Intel Core i3 560 @ 3.3 GHz or AMD Phenom II X4 945 @ 3.0 GHz

CPU

Intel Core i5-6600 or AMD Ryzen 5 1600

Memory

4 GB RAM

Memory

8 GB RAM

GPU

NVIDIA GeForce GTX 460 or AMD Radeon HD 5870 (DirectX-11 compliant with 1GB of VRAM)

GPU

NVIDIA GeForce GTX 1060 or AMD Radeon RX 580

DirectX

DirectX 10

DirectX

DirectX 12

Storage

2 GB available space

Storage

2 GB available space

SoundCard

DirectX® 9.0c compatible sound card with latest drivers

SoundCard

DirectX® 9.0c compatible sound card with latest drivers

Additional Notes

Requires a 64-bit processor and operating system

Login Accounts Required

Epic ID

Languages Supported

  • Audio: English

  • Text: English

© 2024 Tuatara Games. All rights reserved. Let Them Come: Onslaught, its logo, and associated trademarks are the property of Tuatara Games. Unauthorized distribution, duplication, or commercial use is prohibited. This software is licensed for individual use only and is subject to the End User License Agreement (EULA) and Privacy Policy available on the Epic Games Store. All other trademarks are the property of their respective owners.

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