Single-player games like The Harbinger of the Deep
Below are 9 single-player Steam games similar to The Harbinger of the Deep, 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 The Harbinger of the Deep page.
Ranked picks
- 1
Crusator
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
CRUSATOR is a fast-paced, twin-stick shooter about robot-transformer. Shot'n'Ram enemies. Nothing can stop you! Except low level battery.
- 2
Earl vs. the Mutants
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
Save humanity in a mutant-ridden apocalypse! Dive headfirst into Earl vs. the Mutants, a high-octane top-down survival action-roguelite set in the aftermath of a nuclear apocalypse.
- 3
Cells of Division
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
Cells of Division is a top-down bullet hell roguelike. Fight with past-run clones (up to 6 allies), mix ~100 items, and defeat 50+ bosses. Destroy viruses and defend the immune system!
- 4
Blood in the Panopticon
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
Humanity must be eradicated! Thus spoke the ADMIN. And his Android obeys... for now. Enact your revenge upon those who forsook you. Upgrade C424, keep her loyal and use her to paint the Concrete Plains red. But remember: PANOPTICON always stares back.
- 5
FULLYBROKEN: WAY HOME - A Roguelike Shooter
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
A roguelike shooter set in a post apocalyptic world, with dynamic narrative happening along your journey. Your goal is to go back home to your wife and kids. But the journey back home is perilous and full of danger. Be careful, your actions and choices along the way could leave you dead.
- 6
The Knight Witch
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
The Knight Witch is a metroidvania adventure game with fast-paced, shoot 'em up combat set in a beautifully hand-drawn world. Cast devastating card-based spells, forge close bonds, and make moral choices all in your quest to save your home and discover who's behind the War Golem invasion.
- 7
Sharded World
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
Sharded World is a reversed bullet hell, rogue-lite, ARPG game combining simple gameplay and great rpg progression. Each level has its own unique features and challenges. Upgradable characters, weapons and orbs. Challenges, daily quests, and leaderboards. Fight, get stronger and defeat the Lich!
- 8
Shape Shifter: Formations
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and RPG with The Harbinger of the Deep.
Shape Shifter: Formations is an action twin-stick shooter with rogue-lite elements, where you must destroy hordes of geometric enemies alone or with a friend. Select your ship and combine a large variety of weapons, abilities and infinitely stacking upgrades to craft your own unique build.
- 9
Deep Dark Wrath
Single-player alternative to The Harbinger of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with The Harbinger of the Deep.
Plunder for Points, Collect and Strengthen yourself with Enchanted Cards, Survive countless enemies, Venture deep to find their source, Escape, and Quell the Deep Dark Wrath!