Single-player games like Dungeon Siege III
Below are 21 single-player Steam games similar to Dungeon Siege III, 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 Dungeon Siege III page.
Ranked picks
- 1
Dungeon Siege
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
Dungeon Siege® combines the immersive elements of a role-playing game with over-the-top intensity and non-stop action. Dungeon Siege plunges you into a continuous 3D fantasy world where you face off against an army of evil that has been unleashed.
- 2
Dungeon Siege II
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
It’s been a generation since you vanquished the evil that plagued the Land of Ehb, and now…a new menace has awakened. In Dungeon Siege II, the sequel to the best-selling RPG from Gas Powered Games, you will be called on to again wield sword and spell to save the world from a growing abomination many years in the making.
- 3
The Incredible Adventures of Van Helsing
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Put on your wide-brimmed hat, grab your weapons and embark on an incredible adventure in the gothic-noir world of Borgovia, where mad science threatens the fragile peace between monster and mortal.
- 4
Grim Dawn
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Enter an apocalyptic fantasy world where humanity is on the brink of extinction, iron is valued above gold and trust is hard earned. This ARPG features complex character development, hundreds of unique items, crafting and quests with choice & consequence.
- 5
Torchlight II
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
The adventure continues in Torchlight II! An Action RPG filled with epic battles, bountiful treasure, and a fully randomized world. Bring your friends along for the journey with online and LAN multiplayer.
- 6
Victor Vran ARPG
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Victor Vran is the isometric action-RPG where your skill is just as essential as your character build and gear. Experience intense combat action: dodge, jump and unleash powerful skills to finish off your enemies!
- 7
Last Epoch
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Uncover the Past, Reforge the Future. Ascend into one of 15 mastery classes and explore dangerous dungeons, hunt epic loot, craft legendary weapons, and wield the power of over a hundred transformative skill trees. Last Epoch is being developed by a team of passionate Action RPG enthusiasts.
- 8
Krater
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action with Dungeon Siege III.
The game brings you far into the future of a post-apocalyptic Sweden.
- 9
Fallout: New Vegas
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Welcome to Vegas. New Vegas. Enjoy your stay!
- 10
Path of Exile
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action with Dungeon Siege III.
You are an Exile, struggling to survive on the dark continent of Wraeclast, as you fight to earn power that will allow you to exact your revenge against those who wronged you. Path of Exile is an online Action RPG set in a dark fantasy world. The game is completely free and will never be pay-to-win.
- 11
Sacred 3
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
Sacred 3 is an arcade Hack ‘n’ Slash game for up to 4 players. Choose a hero and fight cooperatively against the rise of evil. Victory is Ours. Glory is Mine.
- 12
NEO Scavenger
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
NEO Scavenger is a game where you must survive in the wasteland long enough to figure out who you are. Each turn, you must decide where to go, how to scavenge for supplies, and how to deal with anything and anyone you encounter.
- 13
Baldur's Gate: Dark Alliance
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
A new legacy begins...
- 14
Dungeons & Dragons Neverwinter Nights 2: Enhanced Edition
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
The Fate of The Forgotten Realms is in Your Hands. Return to the city of Neverwinter in Dungeons & Dragons Neverwinter Nights 2: Enhanced Edition.
- 15
Grounded
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action with Dungeon Siege III.
The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?
- 16
South Park™: The Stick of Truth™
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action and RPG with Dungeon Siege III.
From the perilous battlefields of the fourth-grade playground, a young hero will rise, destined to be South Park’s savior. From the creators of South Park, Trey Parker and Matt Stone, comes an epic quest to become… cool. Introducing South Park™: The Stick of Truth™.For a thousand years, the battle has been waged.
- 17
The Outer Worlds
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
The Outer Worlds is an award-winning single-player RPG from Obsidian Entertainment and Private Division. As you explore a space colony, the character you decide to become will determine how this player-driven story unfolds. In the colony's corporate equation, you are the unplanned variable.
- 18
STAR WARS™ Knights of the Old Republic™ II - The Sith Lords™
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
5 years after the events of the award winning original, the Sith are on the verge of crushing the Old Republic. As a lone Jedi, will you follow the light side or succumb to the dark?
- 19
Grounded 2
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares Action with Dungeon Siege III.
Shrunk again, but the world is much larger. In this open-world, single-player or co-op survival adventure, craft weapons and armor, build your base, and traverse the playground on your buggy. But something else is out there—and it hasn’t forgotten you.
- 20
Pillars of Eternity
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
Prepare to be enchanted by a world where the choices you make and the paths you choose shape your destiny. Obsidian Entertainment, the developer of Fallout: New Vegas™ and South Park: The Stick of Truth™, together with Paradox Interactive is proud to present Pillars of Eternity.
- 21
Pillars of Eternity II: Deadfire
Single-player alternative to Dungeon Siege III — playable solo, no multiplayer required. Shares RPG with Dungeon Siege III.
Patch 5.0 - Turn-based mode and The Ultimate challenge out now! Pursue a rogue god over land and sea in the sequel to the multi-award-winning RPG Pillars of Eternity. Captain your ship on a dangerous voyage of discovery across the vast unexplored archipelago region of the Deadfire.