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Interloper on Steam

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Interloper is an online multiplayer real-time strategy game with matches that take only 5 minutes. Instead of destroying your opponent, you win by claiming domain. By predicting your opponent's movements, you corner them to claim the entire map.

Interloper is a strategy, indie and rts game developed and published by Monogon Games.
Released on May 21st 2015 is available on Windows, MacOS and Linux.

It has received 399 reviews of which 337 were positive and 62 were negative resulting in a rating of 7.9 out of 10. 😊

The game is free to play on Steam.


The Steam community has classified Interloper into these genres:

Media & Screenshots

Get an in-depth look at Interloper through various videos and screenshots.

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System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • OS *: Windows XP
  • Processor: 1GHz
  • Memory: 1 GB RAM
  • Graphics: Support Shader Model 3.0
  • DirectX: Version 10
  • Network: Broadband Internet connection
  • Storage: 300 MB available space
  • Sound Card: DirectX 10 compatible
  • Additional Notes: Uses XNA HiDef
MacOS
  • OS: Mac OS X v10.8 Mountain Lion
  • Processor: 1GHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL 3.0 support (2.1 with ARB extensions acceptable)
  • Network: Broadband Internet connection
  • Storage: 300 MB available space
Linux
  • OS: glibc 2.15+, 32/64-bit. S3TC support is NOT required.
  • Processor: 1GHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL 3.0 support (2.1 with ARB extensions acceptable)
  • Network: Broadband Internet connection
  • Storage: 450 MB available space

Steam Price & Best Deals

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

10 hours played
May 2025
A ingeniously made game reminds me of the first time I played something like starcraft or chess, it is perfectly designed. Has balanced games which are quick and complex. Can't believe this game never caught on with mainstream steam multiplayer games. 9.5/10 Great game design.
1 hours played
April 2021
The game itself is decent. Unfortunately, the single player skirmishes after the campaign become boring quickly and the multiplayer scene is dead. If there were more players to play against it would definitely deserve its thumbs up. As it is it barely gets one.
4 hours played
Nov. 2018
Game Play - 1 Play Time - 1 Engaging - 1 Stability - 1 Sound - 1 Innovation - 1 Story - 0 Replay - 1 Graphics - 1 Price - 1 Total Score - 9/10 Note: Nice little thinker game. The single player is really just a tutorial for multi-player. Saddly the muli-player is kinda dead. Since it's free convincing others you know to play it shouldn't be to hard.
81 hours played
Nov. 2017
After watching the trailer, I immediately realized that this is a very interesting and concrete project. Without thinking twice, I bought and rejoiced, because it weighs only 300 mb. I downloaded, I was happy again, I began to receive training. But later, realizing that this is the whole beauty of the game, I was stuck and continued to master the complex management (well, that there are hotkeys). The first thing I would like to say is that this is a very long and detailed training in many stages and battles with the computer. Each explanation is accompanied by a mini-game where you dictate to study new techniques and new "objects", which in the future you will fight. These "objects" you have to create with the help of the barracks, which, in turn, feed on special sources of energy. There are several types of "items": some - ordinary pawns, other guards, third strong fighters, and the rest - excellent snipers. Even in the game there is an object that allows heroes only in one direction, which makes the battle even worse. After several such explanations, you get into the game using a computer, where you need, with the help of the aforementioned "assistants", to grab the necessary number of fields. Over time, things get complicated. Of course, you can follow exactly the same way as your opponent, but that will not be enough to win. You will need to create a brain opening tactic (or simply) with which you will win. Plus enough in this game. The first plus is the idea itself, the second is unconditionally graphic, because it relaxes, and the third plus is the soundtrack, the fourth and fifth are gameplay and entertainment with friends, because the battles in this game, especially with a friend, are quite spectacular. But in this game there are minuses. For an inexperienced player, there are "protracted" situations when playing with bots. That is, the effect of the slogan "our rounds lasts no more than 5 minutes" in such situations collapses due to the fact that you can get into a tactical or strategic stupor. The game is very well balanced, you can not crush the enemy by the farm, you will be saved only by competent tactics, which at some moments can reduce the dynamics, causing the player to "slow down" the action and think about the next move in the game, and thus the round can drag on 10-15 minutes. It all depends on the ingenuity of the player. But experience in the game as a result can deny this flaw. Some of them may call the controversial setting of the game - a kind of fantastic "underwater" or "bioworld" is at first a little scary, as long as the player gets used to the mechanics of the game. Interloper - a good network puzzle with unusual gameplay, suitable for the break. With all this, the game dragged me over 51 hours. But for those who just want to spend time pleasantly, I advise you to immediately copy several packages to yourself and friends. Due to the fact that I can not immediately find a network fight 9.5/10.
49 hours played
Aug. 2016
Interloper is a unique, beautiful and fast-paced RTS game in which you control a tribe of alien fish with the goal of capturing more territory than a rival tribe of alien fish. Your main character is a Sentinel, which is immortal and can capture territory or go invisible and intangible. Each map contains certain structures that can be captured. Assemblers produce Drones, provided they are connected to a Power Source. Drones are quick little creatures that can block the path of Sentinels and can attack other Drones. There are also Foundries, which also require a Power Source and can convert Drones into Specialist Units such as Defenders (cost 2 Drones but have 3 HP), Snipers (cost 3 Drones, and have 1 HP, but can shoot enemies at a distance), and Destroyers (cost 4 Drones and have two arms that can be used either to attack or defend, but recharge over time). And that’s about it. The player who captures 75% of the territory wins. This is one of those games that has the perfect balance between simple rules and depth of gameplay. You do not need to memorize the stats and abilities of dozens of different units, know the full implications of different technologies, or spend hundreds of hours playing or watching game mechanics videos to understand the subtle intricacies of the game. You can learn everything there is to know about the game in 1-2 hours, then test your skills against either the AI or other players online. Interloper is a game of quick thinking, reflexes and strategy in which skill beats dedication and no strategy will always win. (You may form a strategy which will usually win if you always play against different players, but once someone learns your strategy, they can come up with one to beat it.) Features: - Unique, beautiful, and somewhat surreal atmosphere. - Single Player Tutorial/Campaign that walks you through the basics. - 13 skirmish maps where you can play against AI or other players. - Public Online Multiplayer matches with a ranked leaderboard. - Private Online Multiplayer matches in which you can challenge your friends. - 4 difficulty levels of AI and 4 behavior types, as well as 7 handicaps for an additional challenge. - Replays of all your matches are automatically saved, and you can optionally upload them so that everyone can see them. - Option to play skirmishes against the AI or watch replays while in the public multiplayer waiting queue.

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Frequently Asked Questions

Yes, Interloper is free to play on Steam.

Interloper is not on sale because is already free to play on Steam.

Yes, Interloper received 337 positive votes out of a total of 399 achieving a rating of 7.88.
😊

Interloper was developed and published by Monogon Games.

Yes, Interloper is playable and fully supported on Windows.

Yes, Interloper is playable and fully supported on MacOS.

Yes, Interloper is playable and fully supported on Linux.

This information about Interloper is not available yet.

This information about Interloper is not available yet.

No, Interloper does not support VR.

Interloper offers both single-player and multi-player modes.

Interloper offers both Co-op and PvP modes.

No, Interloper does not currently offer any DLC.

No, Interloper does not support mods via Steam Workshop.

No, Interloper does not support Steam Remote Play.

Yes, Interloper is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Interloper.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 22 September 2026 14:12 UTC
SteamSpy data 15 October 2026 08:34 UTC
Steam price 22 September 2026 14:12 UTC
Steam reviews 22 October 2026 09:55 UTC

If you'd like to dive deeper into the details about Interloper, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Interloper
  • SteamCharts - Analysis of Interloper concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Interloper compatibility
Interloper
Rating
7.9
337
62
Game modes
Features
Online players
0
Developer
Monogon Games
Publisher
Monogon Games
Release 21 May 2015
Platforms