
Game Overview
A hostile alien planet becomes a proving ground for ruthless soldiers in a top-down roguelite built around constant forward momentum. Invasion Protocol casts you as the invading force rather than a stranded survivor, sending a skull-masked operative into nests of aggressive insectoid enemies. The mood is loud, violent, and knowingly over-the-top, with every mission framed as a military operation that rapidly turns into a desperate fight against overwhelming numbers. It delivers the satisfying panic of an arcade horde shooter while keeping the stakes high through run-based progression.
Combat revolves around twin-stick movement and aiming, demanding that you circle swarms, prioritize dangerous targets, and keep firing instead of hiding behind scenery. Runs connect randomized combat zones and assign changing objectives, which can involve securing installations, eliminating powerful brood leaders, restoring damaged extraction equipment, or simply purging every creature in the area. Six character roles offer different tactical angles, from direct gunfighters and stealth-focused infiltrators to engineers, demolition specialists, and area-control experts. Supply crates and ability terminals let you replace gear mid-mission, so a build can shift from close-range crowd clearing to boss hunting when the situation demands it.
Its strongest idea is the combination of immediate, no-nonsense shooting with the flexibility to alter your loadout on the fly. Enemy pressure does not remain static: tougher mutations, growing hordes, and enormous creatures force players to react rather than rely on one comfortable weapon setup. Successful attempts unlock additional classes, tools, and powers, giving repeated runs a meaningful sense of expansion without turning the action into a slow grind. Players who enjoy the frantic swarm management of Alien Swarm, the run-to-run variety of roguelites, or the aggressive military satire of Helldivers should find plenty to like, while newcomers can start with straightforward combat roles before experimenting with the more specialized kits.
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 Invasion Protocol 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
- OS: 7 / 8 / 10 / 11
- Processor: 2 GHz (32/64bits)
- Memory: 512 MB RAM
- Graphics: Minimum Resolution – 1336×768, Graphics Card with at least 128MB Dedicated Memory
- Storage: 300 MB available space
- Sound Card: Any
- Additional Notes: Works on 32 and 64 bits systems
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Invasion Protocol (v0.3.0)?
After extracting Invasion Protocol (v0.3.0), 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 155.74 MB — 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. 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.