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Metal Slug 4 cover art

Mobile game · 2022

Metal Slug 4

One year after the events of Metal Slug 3, the world is trembling under the new threat of a mysterious but deadly cyber virus that threatens to attack and destroy any nation's military computer system. With Tarma and Eri unable to help due to their own assignments in the matter, Marco and Fio are called in to investigate the situation and are joined by two newcomers, Nadia and Trevor. In their investigation, the group discovers that a terrorist organization known as Amadeus is behind the nefarious plot and that they head into battle against Amadeus' forces, hoping to destroy the cyber virus before it gets the chance to wipe out the entire world's military computer system

Estimated daily players

~630.0% no change vs one week ago

Range 6380

Estimated total players

~1,3000.0% no change vs one week ago

Range 6302.5K

See what's trending

Estimates, not counts — nobody publishes real player numbers for mobile games, so these are modelled from public signals. How we work them out

Aug 2, 2022AndroidiOSESRB 18

What the estimate rests on

  • Google Play 66%
  • App Store 34%

Player estimates

Nobody publishes how many people play Metal Slug 4, so these figures are modelled from the public counts on Google Play, App Store, Twitch. Each count stands in a roughly known ratio to a population — one Play rating per ~45 players, one Steam review per ~35 owners — and the estimates below combine those readings, weighted by how much each source can be trusted to speak for the whole game. Read the range as the answer and the headline as its middle.

Estimated daily players

~63

0.0% no change vs one week ago

Range 6380

No source reports a live count for this game, so this is a share of the total player base — a genre assumption rather than an observation, which is why the range is wide.

Estimated total players

~1,300

0.0% no change vs one week ago

Range 6302.5K

Everyone who has ever played, from the cumulative counts: store ratings and installs, Steam reviews, members and subscribers.

Estimated total players over time

2 readings · last 2 days

Average estimated players per month

Mean estimated total players for Metal Slug 4 per calendar month, newest first
MonthEstimated total playersChange
August 2026~2,400

Community activity

Last checked Aug 9, 2026

Store signals

How many people have rated, reviewed or installed Metal Slug 4 where it is sold.

Google Play ratings

125

Average rating
4.4
Installs
5K+

First reading taken Aug 9, 2026 — the chart appears once there are two.

Ratings left on the Android listing. It is the broadest signal in the catalogue — about half of all games here have a Play page.

App Store ratings

21

0.0% no change vs Aug 8, 2026
Average rating
4.4

Ratings left on the iOS listing, read from Apple’s public lookup endpoint.

Community signals

How many people gather around Metal Slug 4 outside the stores — members, subscribers and live viewers.

Twitch viewers

0

Live channels
0

First reading taken Aug 9, 2026 — the chart appears once there are two.

People watching this game on Twitch right now, summed across every live channel in its category.

Not tracked for Metal Slug 4: Steam, Discord, Reddit, YouTube. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.

Storyline

One year after the events of Metal Slug 3, the world is trembling under the new threat of a mysterious but deadly cyber virus that threatens to attack and destroy any nation's military computer system. With Tarma and Eri unable to help due to their own assignments in the matter, Marco and Fio are called in to investigate the situation and are joined by two newcomers, Nadia and Trevor. In their investigation, the group discovers that a terrorist organization known as Amadeus is behind the nefarious plot and that they head into battle against Amadeus' forces, hoping to destroy the cyber virus before it gets the chance to wipe out the entire world's military computer system.

Trailer

Gameplay video

Screenshots

Frequently asked questions

How many people play Metal Slug 4?

We estimate that about 1,300 people have played Metal Slug 4 — plausibly between 630 and 2.5K. Around 63 of them play on a given day, in a range of 6 and 380. Both figures are modelled from public counts on Google Play, App Store and Twitch rather than published by the developer, so read them as a scale rather than as a headcount.

Is Metal Slug 4 still active?

Yes. Metal Slug 4 is holding steady — it measured within a percent of where it was a week ago. We recheck every source daily, and the charts on this page show each platform's readings over time.

How are the Metal Slug 4 player estimates worked out?

Nobody publishes player counts for mobile games, so we infer them. Each public count we can read is converted into a population using a documented ratio — roughly one Google Play rating per 45 people who played, one Steam review per 35 owners, one Discord member per 40 players — and the live counts (Steam concurrents, members online, Twitch viewers) are converted the same way into a daily figure. Those separate estimates are then averaged in proportion to how much each source can be trusted, which is why sources that disagree widen the published range instead of cancelling out. This page is built on 2 readings taken since August 8, 2026.

When was Metal Slug 4 released?

Metal Slug 4 was released on August 2, 2022 for Android and iOS.

What platforms is Metal Slug 4 available on?

Metal Slug 4 is available on Android and iOS. You can get it from Google Play and App Store (iPhone).

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