Steam app 1184810 · updated 13 Sep 2026, 00:06 UTC
MAINFRAME DEFENDERS - Turn-based tactics centered around gear and unit customization. It offers simple combat, high replayability, and tons of loot. Items don't just provide stats boost, but also offer distinct mechanics that can be combined into powerful builds.
209 hourly samples, with the daily peak drawn over them. Weekends are shaded.
80 months, February 2020 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
29 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
27 days as the curve, each the highest figure that day. Behind it, 137 hourly samples from 14 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
Mainframe Defenders was released on 25 Feb, 2020.
| Language | Full audio |
|---|---|
| English | |
| Russian | |
| Hungarian | |
| German | |
| Portuguese - Portugal | |
| French | |
| Italian | |
| Spanish - Spain | |
| Polish | |
| Simplified Chinese | |
| Korean | |
| Japanese | |
| Portuguese - Brazil |
A blank audio cell means full audio was not marked in the returned language list.
14 achievements in total.
49 developer announcements, Dec 2019 to Mar 2026 · times in UTC
Mainframe Defenders 6th anniversary continues and even speeds up, the discount continues and expands to our other games! Let's celebrate the blooming with vibrant gaming experiences_ /Loading...-\ 💾 \ Our best turn-based retro hits_This…
Synthetic DomainMainframe Defenders turns 6 years old today! 🎉Six years ago we released a small tactical cyberpunk experiment about defending a broken mainframe against rogue machines. Since then thousands of players have explored its corrupted networks…
Synthetic DomainHi, this is Synthetics - the Winter Sale on Steam has begun. We are here to welcome the season: on this page you will find generous winter discounts, curated bundles, and the opportunity to add our in-development projects to your wishlist.…
WaerCat雨https://clan.akamai.steamstatic.com/images/39808920/e03d82778f113b1870fdcf6bd58da6b3883c030d.gif Hey, villains! A few days of light remain before we plunge into darkness. Drop the mask of the benefactor, gloat over hypocrites, and bring the…
WaerCat雨https://clan.fastly.steamstatic.com/images/39808920/f2a0858bb32fa72b61847cca4ce631e7c4575fe4.gif We have passed the milestone of 2,000 wishlist additions - thank you for your support. This is only the beginning. As we finalize the game…
WaerCat雨https://clan.fastly.steamstatic.com/images/39808920/ff006bee187abfb2ec344997102d9b3bfc167e4a.gif /Hey, this is Synthetics_ /Summer sale time has come, and it's time for us to break out of oblivion, remind you that life exists and is…
Synthetic Domainhttps://clan.fastly.steamstatic.com/images/39808920/627d5b8533cf0c22cac589c17ef1cda764558838.png Hi, Defenders! The day has come - 5 years! Wow, how time flies... Thank you for still playing our game and following the news, and today we…
Synthetic Domainhttps://clan.fastly.steamstatic.com/images/39808920/97d778c7482b5fd166379ba0db1add1292b8e03c.gif Hi, Defenders! We’re kicking off February with a sale featuring games from our genre friends and more_…
Synthetic Domainhttps://clan.fastly.steamstatic.com/images/39808920/97d778c7482b5fd166379ba0db1add1292b8e03c.gif Hi, Defenders! We’re kicking off February with a sale featuring games from our genre friends and more_…
Synthetic Domainhttps://clan.akamai.steamstatic.com/images/39808920/c7345b0c500aabe63410fe27793d644dda36da27.gif Embark on an exciting journey with BlazeRush and Mainframe Defenders in one package and at a bargain price of 30% off!_ Try to combine driving…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/a0e61630ae018025a81cb697584638839a9583fd.png {STEAM_CLAN_IMAGE}/42064757/f284a8341ea788cb5429117dde1beb4da9f28fbe.gif Play demo, any feedback you have is important to us!…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/5e994367282a55af17704a583694f270036a031a.png IMPORTANT EVENTS! 1. Lords of Ravage can be seen at Women-Led Games Showcase and BIG Summer Showcase 2024 on Steam. Thanks to the organizers…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/014ac81c353cbd3b48eaa54f0a52ff3a0c072cb5.png We're excited to be a part of Digital Tabletop Fest: Roll of the Dice! From this day, March 7th, until the 11th, tabletop games are waiting for…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/2928879b9813392fbb5fa7c389fdc16c8ebd60b9.png Our games were taken at "WOMEN'S DAY SALE 2024" Women in our team hold very important responsible positions and we thank them for their…
Synthetic_Domain{STEAM_CLAN_IMAGE}/36104698/1393ff591f8e77600c005e746d01b416904b3d58.png /We're 4 years old_ We are very excited! Our little indie project has gathered so many loyal fans and continues to do so. Today we would like to make you happy. We…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/9cdf03cedd16ae3d7b1f1eca7d65ecfd6a514269.gif https://clan.akamai.steamstatic.com/images/39808920/86f0df5f62c7bab4f1e0c28ae0389bf6d8930b91.png We participated in the DreamHack Beyond Game…
Synthetic_Domainhttps://clan.akamai.steamstatic.com/images/39808920/56e07d845132c48bb43399e72433b771e1e5c378.png We are participating in the "Be A Hero" festival from Comic Cop Stuttgart 2023. There is no discount on the game, stim didn't allow it, just…
Synthetic_Domain+ 86% off Mainframe Defenders / Dev. diary #3 Lords of Ravage! {STEAM_CLAN_IMAGE}/42064757/e05bde71935b40312f2d80fdd45cf663c1a2d38f.png Hi! We've finally got some good news. We've got the funding, and we're ready to continue the work. It's…
Synthetic_Domain{STEAM_CLAN_IMAGE}/42064757/e05bde71935b40312f2d80fdd45cf663c1a2d38f.png Hi! We've finally got some good news. We've got the funding, and we're ready to continue the work. It's been a while since the last dev diary, and despite putting a…
Synthetic_DomainWe are incredibly excited to share some thrilling news with you all! Our team has been diligently working behind the scenes, and now we are ready to unveil our revamped developer website.🌐 our developer website has received a total…
Synthetic_DomainHi all, long time no write, already forgot your turn-based green evenings with a good synthwave soundtrack? You can go back and play again, or better yet, a couple more times. Unfortunately there are no updates since we're completely…
Synthetic_DomainWe're releasing the demo version for our next project - Lords of Ravage. https://store.steampowered.com/app/1830320/Lords_of_Ravage/ And wanted to celebrate the occasion. We're permanently cutting the price of Mainframe Defenders by 40%. If…
Synthetic_DomainHello everyone! This is rather small update for Mainframe Defenders. We've finally fixed Spanish localization as well as adding Português do Brasil support for the game. We've also fixed some of the bugs with the game, like being able to…
Synthetic_DomainHello everyone! So, the second anniversary of Mainframe Defenders has arrived. A lot of time has passed. It seems only recently that we launched the Meltdown update, where we completely rebalanced the game and fixed a lot of issues, but…
Synthetic_DomainYeah, we'll gonna build our own theme Steam Summer Sale, with videogames and discounts! All 1 of them! But until July 24rd we are continuing and updating the game with reworked Korean localization. As usual, we are open to your feedback and…
Synthetic_DomainSummer kicks off with smart tactical roguelikes as we participate in the 2021 Steam Summer Sale. We've come a long way towards improving the balance and difficulty. We've also added new content in the 1.3 Anniversary Update. Now the game is…
Synthetic_Domain皆様から翻訳の品質を懸念するメッセージを受け取りました。低品質なローカライズについてお詫び申し上げます。日本語、および中国語（簡体字）の翻訳を、最新アップデートにて完全刷新いたしました。 コメント、および公式Discordチャンネルで、翻訳に関するフィードバックをいただけると幸いです。 ____________________________________________________________________…
Synthetic_DomainWe are launching "Asia BOOM!" event and a 35% discount Chinese (simplified), Japanese, Korean. Now you can find 3 new languages in the game! Join our Discord to be up to date with updates and news.
Synthetic_DomainTime for big pancakes! We are participating in the "Pancake week" themed sale and have prepared the biggest anniversary discount of 70% for you. As a nice bonus, we have added 4 new languages! Spanish. Italian. Polish. French. We will try…
Synthetic_DomainNew content: - New player units: "Synapse A" and "Synapse B". - New strategic tile: "Upgrade Chest". - You can now rename your units and assign individual colors to them. Upgrade System for enemies: Every enemy has a chance to have an…
ZeroTheCatAnniversary Update: Other improvements. Hello everyone, It's been a while since the last dev diary. The Anniversary Update is almost done, and today I would like to tell you about some of the miscellaneous changes it will bring.…
ZeroTheCatHello and welcome to another dev diary for the Mainframe Defenders anniversary update. If you've played Mainframe Defenders you probably know that it suffers from the "inverse difficulty curve" syndrome. This basically means that the first…
ZeroTheCatHello, this is ShiftyCode. It is time for the next dev diary for the anniversary 1.3 update. Even though the player builds are at the heart of the game, those builds would be pointless without some fun enemies. And the enemies can be a bit…
ZeroTheCatHello, this is ShiftyCode, and today I would like to talk a bit about the future updates for the game. Thanks to your feedback I was able to better understand some of the issues the game has. Which was great, because when you playtest your…
ZeroTheCatNew info for Brazil and Portugal! We are launching Portuguese localization (note: not Brazilian Portuguese). Not so long ago, our game was invited to the Indie X 2020 exhibition and we've decided to make a Portuguese translation for the…
Mega9pixel1.2 Content update New content: - New player units: Shiva A and Shiva B. - New item type: squad upgrades. - 13 new squad upgrade items. - 5 new support themed items. - 2 new strategic tiles: Suppression Field and Repair Gel. - Strategic…
ZeroTheCatHi everyone, it is ShiftyCode! It's been a while since the last content update for Mainframe Defenders and it is time to fix that =) I've wanted to thank you all for your support, so I am adding some new type of items to the game: Squad…
ZeroTheCatHi everyone! I've always wanted to add more localizations to the game, but I've always been limited by the resources I've had. But thanks to Sunsetjoy, I am glad to announce that Hungarian localization is available for Mainframe Defenders.…
ZeroTheCatMELTDOWN UPDATE This big update is designed to rework those aspects of the game that were not working, improve balance, add new content, and make the UI more convenient. New content: - New mission types: Activate The Defense, Matter Raid…
ZeroTheCatHello everyone and welcome to the final Meltdown update dev diary! One of the significant features of this update will be the addition of Tier 3. This tier is smaller compared to other tiers, but it comes with a set of 4 unique enemies and…
ZeroTheCatHello everyone and welcome to the Mainframe Defenders dev diary! Overall, I think the base game had a solid UI and I hope you can agree with me =) But of course there is always room for improvement. I've changed some parts of the UI based…
ZeroTheCatHello and welcome to the Mainframe Defenders dev diary! Those of you who played Mainframe Defenders probably have noticed a lack of mission variety. The missions indeed were barely different from one another. After all, this is a game…
ZeroTheCatMainframe Defenders: Meltdown Update Announced! {STEAM_CLAN_IMAGE}/36104698/e69d151103ee80de1e0adec7f099ce5f81cebaed.png Hi everyone, ShiftyCode here! Since the release, I've been listening to the feedback our community provided. I've…
ZeroTheCatThis small patch aims to adjust the balance for higher difficulty, where reducing armor becomes more relevant. I've also changed some unit upgrades to add armor penetration or armor breach stacks instead. Also, you will find a new loadout…
ZeroTheCatIn this patch, I tried to stave off some obvious choices, such as Repair Kit and items and upgrades that gave a second move. Also, some weak items were strengthened, and the starting items of some units were changed (for which the new items…
ZeroTheCatI am excited to announce that Mainframe Defenders is released! This was a long journey that started with a simple question: can I make items in X-Com more fun? From there, it grew far beyond what I've originally intended. And hopefully, it…
ZeroTheCatHi everyone! I've been busy making final preparations for the game release. This should be a final patch before the release. Here are the notes: Demo and full game: - Added in-game patch notes menu. - The "Propulsion damaged" effect now…
ZeroTheCatHello and welcome to the next short Mainframe Defenders development diary. Unlocking new items is fun, but playing with the same units can become boring pretty quickly. So, for the full version of the game, I've decided to add the unlocking…
ZeroTheCatHi and welcome to small Mainframe Defenders development diary =D If you've played the demo, you may find that after a while the game becomes a bit stale. You've played all missions, tried all items and upgrades, and there is not much to…
ZeroTheCatWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Mainframe.exe | windows 64 | ||
| Launch | Mainframe.x86_64 | linux 64 |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | ZeroTheCat/Mainframe | *.sav |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG