Tuner Z - Track Days

Review by eFreeware

Most mobile racing games hand you a car and ask you to drive it. Tuner Z - Track Days takes the opposite approach: the garage is the point, and the race is where you find out whether your build works. The developer, Notraction Games, describes it as a full car tuning and racing simulator, and the emphasis really does fall on the word tuning.

That makes it a natural fit for players who enjoy spreadsheets as much as speed. If your idea of fun is swapping an engine, adjusting a gearbox, choosing between all-wheel, front-wheel and rear-wheel drive, then taking the result out to see what it does, this is built for you. If you would rather just drive, the tuning depth may feel like homework.

It has been out since April 2020 and still receives updates, with the most recent one in October 2025. It is free to download, carries ads and offers in-app purchases, and has passed 50,000 installs with a 4.1 average from 681 ratings.

Building a car before you drive it

The core loop runs from the garage to the track and back. You customize a ride through full conversions covering engines, gearbox, nitrous and drivetrain layout, then layer on engine mods, drivetrain mods and handling mods. A full tuning system sits on top of that, alongside visual mods for changing how the car looks rather than how it goes.

What appeals to me is that these categories cover the whole car rather than one slice of it. Power, gearing, grip and appearance are all adjustable, so a build can be shaped toward a specific style of driving instead of just being made faster. That is a meaningful distinction in a tuning game, because it gives you reasons to own more than one car.

The developer is upfront that the game is still in development. More vehicles, tracks and improvements are promised, and a couple of features are flagged as coming soon, including downhill touge runs and highway blasts. What is in the game now is a working simulator that is still being filled out.

Racing against AI or other players

Once a car is built, you take it racing. The developer lists two routes: races against AI opponents and multiplayer. Multiplayer is described as semi-available from version 0.9.5 onward, so treat it as a feature that is present but still settling rather than a finished pillar of the game.

There is also a demolition derby demo included, which is a different flavor of competition from circuit racing and a nice change of pace from chasing lap times. Between track racing, the derby mode and the promised street and downhill content, the game is trying to cover several ways of enjoying a modified car.

How you control all of this is adjustable too. A full mobile control editor lets you lay out the on-screen controls, and there are TCL, ABS and ESC options for tuning how the car behaves under braking and acceleration. Those assists matter in a game like this, because they let a build stay wild without making every corner a fight.

Ads, purchases and the VIP fixes

Tuner Z is free to download and supported by ads, and it also offers in-app purchases. The most recent update fixed VIP validation and the VIP purchase button, and added end-of-race stats buttons for VIP users.

The practical point is simply that this is a free game with in-app purchases attached. That is a common shape for a mobile racing title, and it is worth going in aware of it rather than being surprised.

One thing the developer does state plainly is the hardware expectation. High-end devices are recommended, with an S10 or similar named as the reference point. That is a real constraint for a game with this much going on under the hood, and it is better to know it before you download than after.

The tinkerer's racing game

The player who will get the most from this is someone who likes the idea of a project car. They want to spend time in menus deciding between drivetrain layouts, then feel the difference on track. The tuning system, the mod categories and the control editor all point at that person.

It also suits players who want a racing game they can grow with. The developer is actively adding vehicles, tracks and improvements, and there is a Discord community for updates and early access, plus an open invitation for feedback and suggestions. Getting in now means watching the game fill out rather than arriving at a finished product.

The counterweight is that this is a game in development with a semi-available multiplayer mode. Someone who enjoys the building process will find plenty to occupy them.

A garage-first racer worth the download

Tuner Z - Track Days is worth installing if the tuning side of racing is what draws you in. The conversion options, the mod categories, the tuning system and the control editor add up to a game that treats car building as the main event, and the demolition derby demo gives you something to do with the results beyond chasing lap times.

The caveats are the ones the developer states: it is still in development, more content is on the way, and multiplayer is semi-available. It is free with ads and in-app purchases, and it wants a high-end device. None of that is hidden, and none of it undermines the core appeal for the right player.

For a tinkering-minded racer with a capable phone, this is an easy download to justify. For someone who wants a finished, fully featured racing sim today, the honest position is that the game is still growing into its feature list.

What's new in version 0.9.6.4.9

VIP validation fixed VIP purchase IAP button fixed End stats buttons fixed (VIP) API updates