
Game Overview
Alien swarms pour across neon-soaked battlefields in a frantic survival shooter built around escalating chaos. Let Them Come: Onslaught pairs the one-more-run pull of a roguelite with the screen-filling firepower of modern bullet-heaven games, all wrapped in a grimy 1980s sci-fi aesthetic. Its tone is knowingly excessive: flamethrowers, energy blades, orbital strikes, and mutant hordes turn every run into a loud last stand. Cartridge 87’s synth-heavy soundtrack gives the carnage a fitting arcade-nightmare pulse.
Runs revolve around surviving increasingly vicious waves while moving through procedurally assembled maps, collecting drops, handling sudden events, and reacting to miniboss interruptions. You choose between the straightforward Soldier and the more unusual Psychic, then shape each attempt through weapons, upgrades, defensive tools, and effects that can radically change how you approach a crowd. Some builds favor constant area damage and aggressive close-range clearing, while others reward careful positioning, precision attacks, shields, or devastating cooldown abilities. Bosses serve as real checks on movement and build quality, and optional missions offer extra rewards for players willing to take on riskier objectives. Persistent unlocks between attempts expand the available arsenal and skills, so failed runs still feed into future experiments.
What separates Onslaught from a basic horde shooter is its emphasis on weapon personality and improvisation. A Photon Saber demands a different rhythm than a flamethrower or a screen-clearing nuclear strike, while random map elements prevent a single loadout from solving every encounter. Four worlds provide changing backdrops for the invasion, though the main appeal remains chasing stronger synergies and surviving a little longer than before. Fans of Vampire Survivors-style build crafting who want more active movement, a harder-edged retro presentation, and a stronger action-movie flavor should find plenty to like. Newcomers can enjoy its immediate pick-up-and-play shooting, while genre veterans get the most from mastering its combinations and pushing into its toughest waves.
Screenshots
Installation
- Select the Download button at the top of this page to open UploadHaven.
- On UploadHaven, wait for any countdown, then select Free Download. Optional: UploadHaven Pro for faster downloads.
- When complete, extract the archive to a Let Them Come: Onslaught folder using 7-Zip.
- Open the extracted folder and start the game normally.
- For errors, check Setup Guide & Troubleshooting below. Keep your security software enabled.
System Requirements
- Requires a 64-bit processor and operating system
- OS: Windows 10 (64bit versions required)
- Processor: Intel Core i3 560 @ 3.3 GHz or AMD Phenom II X4 945 @ 3.0 GHz
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 460 or AMD Radeon HD 5870 (DirectX-11 compliant with 1GB of VRAM)
- DirectX: Version 10
- Storage: 2 GB available space
- Sound Card: DirectX® 9.0c compatible sound card with latest drivers
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Let Them Come: Onslaught (v1.2.0)?
After extracting Let Them Come: Onslaught (v1.2.0), navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 0.96 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Do I need to run the game as administrator?
Usually, no. Start the game normally from the extracted folder. If you see a permissions or save error, check that the folder is writable and follow the game's documented fix. Only grant administrator access when a trusted game's specific setup requires it.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
Check that extraction completed and your PC meets the system requirements, including Version 10. Note any error message before choosing a fix. If it identifies a missing runtime, install the required DirectX components or Microsoft Visual C++ Redistributable from Microsoft.
My antivirus is blocking the game — is it safe?
A warning needs to be investigated; the download source alone cannot confirm that a file is safe. Keep your security software enabled and review the detection details. Do not run or restore a flagged file unless you have verified that it is a false positive. If you are unsure, leave it quarantined.