Megabonk: Why This Solo-Dev Roguelike Is Taking Over Steam

A solo developer's $10 Steam game just became one of 2026's biggest indie stories, almost entirely on word of mouth. Here's what Megabonk actually is, and why it's spreading so fast.

What happened

Megabonk, developed and published by solo developer Vedinad, sold over 100,000 units within its first three days on Steam, reaching around 35,000 concurrent players — with some estimates suggesting it could approach 500,000 sales inside its first week. It's sitting just under "Overwhelmingly Positive" on Steam, with 94% positive reviews across nearly 4,000 ratings in under a week.

What we know

• What it is: A 3D wave-survival roguelike — described by players and reviewers as a hybrid of Vampire Survivors and Risk of Rain 2. The random-upgrade power system feels like the former; the boss fights and level structure lean toward the latter.
• Content: 20 unlockable characters, over 70 items, and more than 200 quests.
• Price: $10 (£8.50).
• Team size: One developer.

What this means

Megabonk's numbers are the story here as much as the game itself. A solo-developed, $10 game reaching hundreds of thousands of sales in a week, with no major publisher marketing push, is a real signal that the wave-survival/"bullet heaven" genre Vampire Survivors popularized in 2022 still has significant, hungry demand — not just from nostalgia, but from players actively looking for the next entry in the genre. It's also a reminder that in this specific genre, a tight core loop and a fair difficulty curve can outperform production budget almost entirely.

What's next

Expect Megabonk's early momentum to draw continued content updates from its solo developer, and likely more attention from other small studios looking to enter the same space — Warhammer Survivors, poncle's own new entry in the genre, was announced around the same period.

Frequently asked questions

What is Megabonk similar to? Players and reviewers describe it as a mix of Vampire Survivors and Risk of Rain 2.

Who made it? A single solo developer, Vedinad.

How much does it cost? $10 (£8.50) on Steam.

If you want this genre without installing anything

Kiwiki's Magic Survivor runs the same wave-survival, auto-cast-and-level-up loop entirely in your browser, free. It's not Megabonk — different game, different developer — but if what's pulling you toward Megabonk is the genre itself, this is the zero-install way to try it right now. See our full Games Like Vampire Survivors list for more in this space.

Sources: PC Gamer, GamesRadar+