
Welcome to Mech Builder- a relaxing puzzle game inspired by Model building(gunpla). You will experience the relaxing process of building a model kit with complete freedom with over 70+ puzzles.
Modeled estimate, not a reported figure. How we estimate →
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/day in the week to Sep 1 → 0.14/day in the week after.
Reviews, worldwide (the counter carries no country): 6.2/day in the week to Jul 17 → 0.14/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 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.
About
Welcome to Mech Builder- a relaxing puzzle game inspired by Model building(gunpla). You will experience the relaxing process of building a model kit with complete freedom.
Cut out, assemble, paint, and then customize your models! Build mechs, waifus, armors, figures, and so much more.
Building all the kits will take around 7-9 hours of your time.
Finishing time trial will take around 2-3 hours.
Kitbash mode has endless repeatability.
All models and pieces have been carefully crafted for a relaxing experience.
Features
70+ model kits to build
Total freedom to assemble the models as you prefer
Unlock kitbash mode to make your own models with all the pieces
Unlock time trial to challenge yourself against the clock
Build mechs, waifus, armors, figures, and so much more
Genres
Engagement
Reviews
Themes across 49 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
not exactly what i was looking for,,,BUUUUT a very good game that reminds me of old flash based paperdoll kinda games
I love the building
Excelente juego para iniciarse en los simuladores de armado de figuras. No llega al nivel de complejidad de otros títulos del género, donde la cantidad de tareas necesarias para completar un solo modelo puede llegar a resultar abrumadora. Esto lo convierte en una opción ideal para saciar ese impulso de armar figuras y, quizás, dar el primer paso para adentrarse en este hobby... 8/10
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.
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, Italian, German, Simplified Chinese, Spanish - Latin America, Japanese*languages with full audio support
Hours played at review time, across 49 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Non hai i soldi per i Gunpla, vuoi montare i gunpla è riempirti camera, questo gioco fa al caso tuo
I will freely admit to not knowing that assets in the game were AI based upon purchasing the game. However, I must say that for what I brought the game for, the game has proven to be rather relaxing and stress-free, which is what I had hoped for. The gameplay loop is easy enough to pick up, and can quickly be mastered; nothing is too difficult in the game, which given its aim is to be relaxing is good. The graphics are good enough, though I consider the colour palette a little too bubblegum like for my tastes. My major criticism of the game so far has been that it only has one soundtrack (unless I missed something) - while relaxing and enjoyable enough for the first 20-30 minutes, it has become quickly repetitive since. I understand one of the main criticisms from several reviewers has been the repetitive gameplay loop, to which I would respond by asking what exactly they expected - the game is called "Mech Builder", and is exactly as the name implies. The mech sets are nicely themed, and the designs are different enough to be interesting. Now the elephant in the room - the AI assets. I understand the concern many have given, and were the developer a large team or backed by a big publisher, I would heartily agree. On the other hand, from what I understand the developer is neither of these, so I am willing to be a bit more forgiving of the use of AI in the game's development. All in all, if you are looking for a relaxing little puzzle game without too much difficulty, I don't think you would do too badly with this, especially given its price (I bought it on sale for £3.87). The 3 DLC (I got those on sale, all three for around £3.50) add some extra mech sets to build - like the base game the sets are nicely themed, with some nice references.
If you love building Gunpla kits like Gundam Wing, but you don't have the money or space for them, then here's your new favorite game. There are a LOT of kits contained in the base game, plus 15 per DLC, so there is easily hours of enjoyment to be had. The pieces snap together in a very satisfying way that only the real thing can compare to. My only gripe with this game is that there are no official models/crossovers. However, the original designs feel like they're from a lost series of Gundam Wing, or concept designs from Kamen Rider, so the aesthetic is still there. Seriously, this is the best digital version of assembling kit you will find. Just remap the controls to switch tools with the shoulder buttons, map the action button to either the right trigger or A/X, and you're golden! Before you ask, yes, it's the FULL and accurate version, right down to snipping EVERY SINGLE piece out of the molds 🙂 But seriously, it's a good thing. I wish there was custom ways to paint your figures, but the full color palette and individual piece selection works just fine. Can't wait for more DLC and the upcoming 3D sequel!!
Its a fantastic option for idle time - easy to pick up, slap together pieces, and a straight forward paint and decal application process. There is plenty of content in the base game, and the added DLC will only extend the time you spend with this game. There are some small issues, however. The load time as you play will increase, or if you are multitasking with a browser open. And some of the images for the models are surprisingly low-res, and do not look as good when compared to other model images. (I was gifted the base game, and at the time of writing, I have not purchased the DLC).
I grew up playing and making Gundam Models so, this is relaxing to play. It has that feel of building those models without the leftover pieces and fun to paint things without making a mess.
打折十块可入,当休闲小游戏挺好的
Players by region
Where this game's players are, estimated from review languages.
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