Single-player games like Cavity Busters
Below are 11 single-player Steam games similar to Cavity Busters, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Cavity Busters page.
Ranked picks
- 1

Deflector
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Deflector is a top down action rogue-lite set in a deadly microcosm. Dive deep into hostile worlds teeming with viruses. Strike down increasingly challenging enemies with your weapons and their own deflected projectiles. Live, die, grow stronger and become powerful enough to reach the Source!
- 2

The Void Rains Upon Her Heart
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Help her heart battle tough bosses in this Boss Rush, Bullet-hell with rogue-like elements. Fight through several randomly chosen boss battles leading up to a final battle. Each defeated monster will give her random gifts that power up her heart. Don't let her heart break!
- 3

Star of Providence
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Star of Providence is a top down action shooter with procedurally generated elements. Explore a large, abandoned facility in search of incredible power, fighting dangerous foes and gaining new weapons and upgrades as you progress.
- 4

Dead Estate
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Cornered with nowhere else to turn, can you escape the monster-filled mansion? Dead Estate is a gory, fast-paced, challenging roguelike shooter with a heavy emphasis on horror.
- 5

Enter the Gungeon
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Enter the Gungeon is a bullet hell dungeon crawler following a band of misfits seeking to shoot, loot, dodge roll and table-flip their way to personal absolution by reaching the legendary Gungeon’s ultimate treasure: the gun that can kill the past.
- 6

Cursed to Golf
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Cursed to Golf is a challenging golf-like adventure where every shot counts. Players are tasked with making it out of Golf Purgatory to become a Golfing Legend. With insane hazards, otherworldly power-ups and tons of replayability, will you make it back alive or will you forever be… Cursed to Golf!?
- 7

Keeper's Toll
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Delve into Keeper’s Toll, an action-packed roguelite brimming with challenge and despair. Survive against an onslaught of relentless hordes and grueling bosses with skill-based ARPG gameplay. Embrace the darkness and cleanse these cursed lands.
- 8

Gunlocked
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
A twin stick shooter without the twin stick, Gunlocked is a sci-fi action roguelike about careful positioning and upgrade selection. Manage unique targeting systems across multiple weapons and upgrades, as you battle legions of alien ships, and then do it all over again!
- 9

The Binding of Isaac
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Now 20% More Evil with the Free Halloween update!
- 10

Rheum
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Action and Indie with Cavity Busters.
Jump down the esophagus of a body plagued by viruses and big bad bosses in this reverse vertical scrolling shoot'em up! Collect eye crusties, upgrade your pupils, and clear the screen of bullets with your cornea crushing eye blasts!
- 11

City Limits
Single-player alternative to Cavity Busters — playable solo, no multiplayer required. Shares Indie with Cavity Busters.
Relax and build cities on a desolate tranquil island. Plan ahead to cover the island efficiently by combining buildings and cementing your place on a tile. Each turn an entity spreads, attempting to take over barren or unstable tiles.