It's been a long time coming, but Mongil: Star Dive — Netmarble's long-awaited sequel to its 2013 collectible RPG Monster Taming — is finally landing on April 15, 2026. The free-to-play action RPG arrives on iOS, Android, and PC (via Epic Games Store and Netmarble's own launcher), with PlayStation 5 and Xbox Series X|S versions planned for a later date. Steam, notably, is not on the launch list.
Netmarble has spent years positioning this one. At various points over the past eighteen months, the publisher has described Star Dive as its answer to Genshin Impact and Wuthering Waves — a bold comparison for any free-to-play mobile-first title. With launch day now just two days away, the question becomes whether the finished product can actually stand in that company.
A Thirteen-Year Wait for a Sequel
The original Monster Taming launched in 2013 as a Korean mobile hit with an unusually passionate regional fanbase. It never made a significant dent internationally, but in Korea it became a cult favorite for its character-driven monster synthesis system. Netmarble has spent more than a decade sitting on the IP, and Star Dive is the company's attempt to scale that niche appeal into something that can compete with the new generation of hero-collecting live-service games.
Built in Unreal Engine 5, Star Dive looks a generation removed from its predecessor. Expect cinematic character introductions, high-fidelity environments, and the kind of splash-art character design that has become a calling card for the current wave of anime-flavored live-service action RPGs.
Three-Character Tag Combat
The combat system is Star Dive's most distinctive mechanical feature. Players assemble a party of three characters and swap between them in real time during encounters, each swap triggering shared-cooldown link attacks and elemental reactions. It's a clear lineage from games like Honkai: Star Rail's predecessor Honkai Impact 3rd and Wuthering Waves, but Netmarble has been emphasizing that Star Dive's pacing leans faster and more aggressive than most of its peers.
Gameplay previews and Netmarble's recent online showcase have highlighted tight tag-swap windows, a parry system with generous but skill-rewarding timings, and boss encounters designed around forcing team composition variety rather than letting players brute-force through with a single favorite character.
The Monster Collection Loop
The other half of Star Dive's identity is its Monsterling Collection system — a callback to the original Monster Taming but rebuilt from the ground up. Monsterlings are creatures players can capture in the open world, and unlike most monster-collectors, Star Dive leans into a synthesis and fusion system that lets players combine multiple Monsterlings into new species with inherited abilities and stat lines.
It's a system Netmarble has been careful to present as genuinely deep rather than gacha-bait. In interviews, producer Ken Kim has specifically pushed back on the idea that Monsterling collection is a monetization funnel, saying the intention is for collection and synthesis to be a meaningful alternative progression path independent of character banners.
How that plays out in the live version — especially as endgame content gets layered in — will be one of the most closely watched elements of the launch.
Platforms and Cross-Play
At launch on April 15, Mongil: Star Dive will be available on:
- iOS (via the App Store)
- Android (via Google Play)
- PC (via the Epic Games Store and Netmarble's own launcher)
Cross-play and cross-progression are supported across all three platforms at launch. Console versions for PlayStation 5 and Xbox Series X|S are confirmed to be in development, though Netmarble has not yet committed to a release window. The absence of a Steam launch is the most notable omission — an increasingly common pattern among large publishers trying to preserve platform fee economics.
Pre-Registration, Rewards, and Launch Bonuses
Pre-registration has been open for several months through the Epic Games Store, the Google Play Store, the App Store, and the game's official website at stardive.netmarble.com. Netmarble has confirmed that pre-registered players will receive a bundle of launch-day rewards including currency, a Monsterling starter pack, and a limited-time exclusive cosmetic. Additional milestone rewards have been unlocked as the total pre-registration count crossed several thresholds during the last weeks of the campaign.
The Market Star Dive Is Entering
Launching a free-to-play action RPG in April 2026 means going up against a tough field. Genshin Impact's long-term retention remains strong, Wuthering Waves has continued to build momentum with its quarterly content cadence, and NTE: Neverness to Everness — another major Unreal Engine 5 live-service title — launches just two weeks after Star Dive on April 29. Meanwhile, Sea of Stars has already arrived on mobile this month, pulling attention in an entirely different direction.
Netmarble's pitch is that Star Dive's combination of high-speed tag combat, deep Monsterling collection, and Unreal Engine 5 presentation differentiates it enough to carve out its own audience. The reality is that in the current live-service landscape, first-month retention will decide everything — both the quality of the day-one experience and the tempo of its first post-launch content patch will matter enormously.
Worth Watching
Whether Mongil: Star Dive turns out to be Netmarble's breakout global hit or another mid-tier live-service release will come down to the details: gacha rates, the shape of the endgame progression, and how real the Monsterling synthesis system feels at scale. Two days out from launch, the pieces are at least in place for something ambitious. If you're on the hunt for a new mobile RPG to sink teeth into this spring, Star Dive is the most interesting test case April has to offer.