OVERWHELM
Developed by Ruari O'Sullivan · Published by Alliance
At a glance
Overview
An action, indie game by Ruari O'Sullivan, published by Alliance — single-player, multi-player, pvp, shared/split screen pvp.
Steam’s own one-line description: “You're outnumbered, low on ammunition and the paranoia sets in. This is an action horror-world where enemies get power-ups and you don’t.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for OVERWHELM.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | Yes |
| Co-op | Yes |
| Online co-op | No |
| PvP | Yes |
| Cross-platform multiplayer | No |
| Full controller support | Yes |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Windows 7
- Processor: Intel Core2 Duo 2.4GHz or equivalent
- Memory: 2 GB RAM
- Graphics: Intel HD Graphics 5000 or better
- Storage: 200 MB available space
Supported languages (5)
OVERWHELM FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is OVERWHELM?
Steam classifies OVERWHELM as a Action, Indie game, developed by Ruari O'Sullivan. You're outnumbered, low on ammunition and the paranoia sets in. This is an action horror-world where enemies get power-ups and you don’t.
How much does OVERWHELM cost?
As of June 2026, Steam lists OVERWHELM at $9.99. Prices and regional pricing change — check the Steam page for the current figure.
Is OVERWHELM single-player or multiplayer?
Steam lists these modes for OVERWHELM: Single-player, Multi-player, PvP, Shared/Split Screen PvP, Co-op, LAN Co-op, Shared/Split Screen. It supports both solo and multiplayer.
Is OVERWHELM on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists OVERWHELM for Windows, macOS. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is OVERWHELM out yet?
Yes — Steam lists a release date of Jun 11, 2018.
What platforms is OVERWHELM on?
OVERWHELM is listed for Windows, macOS on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is OVERWHELM single-player or multiplayer?
Steam lists these modes: Single-player, Multi-player, PvP, Shared/Split Screen PvP, Co-op, LAN Co-op, Shared/Split Screen.
How much does OVERWHELM cost?
Steam lists it at $9.99.
Does OVERWHELM have achievements?
Yes — Steam lists 10 achievements for OVERWHELM.
Who made OVERWHELM?
OVERWHELM is developed by Ruari O'Sullivan and published by Alliance.
Where to get OVERWHELM
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Alliance.