Single-player games like Halo 3: ODST Mod Tools - MCC
Below are 13 single-player Steam games similar to Halo 3: ODST Mod Tools - MCC, 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 Halo 3: ODST Mod Tools - MCC page.
Ranked picks
- 1
Halo: The Master Chief Collection
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
The Master Chief’s iconic journey includes six games, built for PC and collected in a single integrated experience. Whether you’re a long-time fan or meeting Spartan 117 for the first time, The Master Chief Collection is the definitive Halo gaming experience.
- 2
Unreal Tournament 3
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Now includes the free Titan Pack expansion! The Titan Pack gives players a substantial amount of enhanced features and new content, including many original environments, new gametypes, the namesake Titan mutator, powerful deployables and weapons, new characters, and the Stealthbender.
- 3
Arma 3
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.
- 4
Baldur's Gate 3
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required.
Baldur’s Gate 3 is a story-rich, party-based RPG set in the universe of Dungeons & Dragons, where your choices shape a tale of fellowship and betrayal, survival and sacrifice, and the lure of absolute power.
- 5
SpellForce 3 Soul Harvest
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required.
Three years after the Purity Wars, Nortander is on the cusp of a new era.
- 6
Borderlands 3
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
The original shooter-looter returns, packing bazillions of guns and a mayhem-fueled adventure! Blast through new worlds and enemies as one of four new Vault Hunters.
- 7
Men of War: Assault Squad 2
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Men of War: Assault Squad 2 expands the real-time tactics series with new skirmish missions, massive multiplayer battles, enhanced visuals, improved AI, and full Direct Control. Command five factions across 65 maps, 250 vehicles, and 200 soldiers in one of the most detailed WWII RTS experiences.
- 8
Sins of a Solar Empire®: Rebellion
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
- 9
Halo Wars: Definitive Edition
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required.
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
- 10
Halo: Spartan Assault
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *
- 11
Halo: Spartan Strike
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*
- 12
Halo 3 Mod Tools - MCC
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.
- 13
Halo 2 Anniversary MP Mod Tools - MCC
Single-player alternative to Halo 3: ODST Mod Tools - MCC — playable solo, no multiplayer required. Shares Action with Halo 3: ODST Mod Tools - MCC.