
Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.
Modeled estimate, not a reported figure. How we estimate →
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.14/day in the week to Aug 17 → 0.43/day in the week after.
About

Genres
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 804 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
很好玩
let's be real here: you're not here for the actual gameplay. you're here to make cool robots so you can have visuals for your fanfics. and this ABSOLUTELY RULES IN THAT.
I quite like this game, in a way it is the "armored core we have at home" or maybe a cousin to that. That's not to say it's a cheap knockoff, M.A.S.S. Builder actually is a lot more minute in your mech customization. If you want to build your dream gundam pick this game, It has a lot of parts and bits and bops for your mech. It's still being actively added to and it's eciting to see an update when they're adding new parts or on a new gameplay expansion. The gameplay is also pretty solid. It starts somewhat simplistic but upgrades allow for greater combo variety. customize robots to your hearts content, break monster faces, die probably.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $3M | 4.5K | 94% | $19.99 | |
| $3M | 4.7K | 87% | $29.99 | |
| $3M | 5.2K | 86% | $17.99 | |
| $3M | 3.9K | 67% | $39.99 | |
| $3M | 4.9K | 78% | $39.99 | |
| $3M | 2.8K | 77% | $39.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $8.1M | 6.9K | 84% | $49.99 | |
| $408 | 2 | 0% | $7.99 | |
| $2.4M | 6.1K | 63% | $21.24 | |
| $541.5K | 941 | 92% | $14.99 | |
| $44.4K | 122 | 51% | $14.99 | |
| — | 0 | — | — |
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 23 chart moves that followed a price cut of more than 20% went a median of 14 places towards #1, and the 2,515 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese, Simplified Chinese, Thai, Traditional Chinese
Hours played at review time, across 806 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
IM A GUNDAM UNIVERSE FAN !! THIS CHECKS ALL THE BOXES. I've had it since EA and work a-lot but still find time to sit down and play one match here and there when i have the oppurtunity.
Build robot, yes
Muito bom o jogo.
A solid 8/10, potentially a 8.5 or even 9ish when it reaches full release Okay, so these are the main points and my opnion about them (as of 10.5): Building mecha: simply amazing and full to the brim with customization options, plenty of armor sets, weapons and accessories (like placing a fin into your shoulders or break, so on). Sadly, it requires some grinding to get armor sets and the game doesn't tell you where each of them drop (but there is a community drop loot) Tuning up: nice trade offs, could use balancing, though. Will likely be reworked in 11.0. Combat: okay so far, needs more balancing, which they announced will come in next updates. Plot: okay, but kind of hectic, lacks conversation log and a "so far" summary, specially given that many people return after months not playing, since it's an early access game. Music and audio effects: cool :) Graphics and visual effects: also quite cool, just too bright sometimes Multiplayer: dead, but your friends like it or you want to scout discord for people to play with, go ahead.
Razoável.
Very well made. I completed all missions as of writing this. Support these guys!
Love Gunpla but don't have the cash for the plastic crack? This is the game for you. Love MonHun but more robots? This is the game for you. Love Gundam Breakers but can't wait for 4? This is the game for you. Heck, love none of the above? This is still the game for you.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.