Single-player games like Into the Underworld
Below are 16 single-player Steam games similar to Into the Underworld, 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 Into the Underworld page.
Ranked picks
- 1
Spellhoard
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
An autobattler where nothing you buy is ever benched. Every spell stays active, your whole spellbook fights as one machine, and your opponents are real players' builds.
- 2
Flowers and Deities
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Flowers and Deities is a strategy deckbuilder roguelite where you command a blood-soaked lizardkin army through escalating arena battles, spending every drop of spilled blood to cast spells, summon creatures, and survive long enough to claim the favor of the Gods
- 3
Last Card Dungeon
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Last Card Dungeon is a roguelite autobattler where your soul is trapped across a cursed deck. Explore a forsaken world. Collect powerful equipment. Tap and discard cards to battle enemies, survive events, and hunt the hooded figure who imprisoned your spirit...before your deck runs dry.
- 4
Lone Tower
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy with Into the Underworld.
Defend one tower. Face endless waves. Build synergies, unlock permanent upgrades, and survive the chaos.
- 5
Sheeple
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Cast cards to turn the tides of the battlefield, gather your army, and fight to regain The Original Sheep! Sheeple is a grand real time Auto battler with roguelike and deck-building elements.
- 6
Shrine Protectors
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Deckbuilder Tower Defense meets rogue-lite RTS strategy. Lead your army, crush waves of enemies, and unlock powerful upgrades and passive spells. Combine deckbuilding strategy with tactical army management in this relentless bullet heaven.
- 7
Withering Age
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Withering Age is a real-time strategy roguelike set in a dark fantasy, medieval world brimming with magic, danger, and decay. Build and expand your kingdom, train loyal troops and mighty champions, and defend your lands against relentless hordes.
- 8
Bibidi Bibidi!
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Bibidi Bibidi! is a whimsical deckbuilder where your wizard shouts whatever spell you conjure up. Every card has 3 components that you combine in your spellbook for unique effects. Mix and match incantations like sim-sala-bim and abra-kadabra to zap your way through a dungeon filled with monsters.
- 9
Yet Another Zombie Survivors
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
The Horde is coming but you're ready to fight it! Assemble your team and decide upon their enhancements to find the most efficient synergies against thousands of the undead. Survive. Then evolve. Then break all the limits in this deceivingly simple but addictive bullet heaven game.
- 10
Yet Another Zombie Defense
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
- 11
Yet Another Zombie Defense HD
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
Top-down zombie shooter with tower defense elements featuring up to 4 players local and online co-op. Build your base by day, defend it by night, put your skills to the test to stay alive as long as possible! Darkness is coming. How long can YOU survive?
- 12
I, Zombie
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Strategy and Indie with Into the Underworld.
Quite a different zombie game - this time YOU are the zombie! Command your infested comrades, fight your way to freedom and let the zombie kind dominate the world! Oh, and you're able to create your own scenarios!
- 13
Fury Unleashed
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
Shoot your way through the pages of an ever-changing comic book in this fast-paced roguelike. Play solo, in local or online co-op, expand your weaponry, and upgrade your hero with each run. All that to find out why has your creator lost his faith in you and to prove him wrong.
- 14
Oozi: Earth Adventure
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
Oozi: Earth Adventure is a classic 2D platformer with old school gameplay - no puzzles, no punishment, just 100% pure classic platforming fun! Its most prominent features are HD visuals and beautiful hand-drawn art, but despite its visual style, it’s a good fit for all kinds of gamers!
- 15
Fury Unleashed: Prologue
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
Fury Unleashed is a combo-driven roguelite action platformer - each kill you score increases your combo. Hit certain thresholds and your damage resistance and healing powers will kick in! It's a game you can even beat in one, ultimate combo. Are you up for the task?
- 16
HELLREAPER
Single-player alternative to Into the Underworld — playable solo, no multiplayer required. Shares Indie with Into the Underworld.
Become the Hellreaper, an unstoppable force that Heaven can’t control and Hell is terrified of. Conquer unholy hordes and slay grotesque bosses. Forge and master your weapons. Wield cursed magic. Discover ancient relics. Evolve. Every step of this bloody descent into the abyss is yours.