Single-player games like Ren & Stimpy Happy, Happy, Joy, Joy, Collection
Below are 16 single-player Steam games similar to Ren & Stimpy Happy, Happy, Joy, Joy, Collection, 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 Ren & Stimpy Happy, Happy, Joy, Joy, Collection page.
Ranked picks
- 1

Hot Guns: International Missions
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Your conventional methods of operation are "shoot first then shoot again!"
- 2

Warhammer 40,000: Shootas, Blood & Teef
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action and Adventure with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!
- 3

Balacera Brothers
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Inspired by classic titles like Contra and Sunset Riders, Balacera Brothers is a retro run n' gun game full of color, energetic music, and fast-paced action.
- 4

Contra: Operation Galuga
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
The legendary Contra series returns! This reimagining of the classic run-'n'-gun action game from the ‘80s features new stages, new enemies, new play mechanics, and co-op combat for up to 4 players!
- 5

Gunslugs 2
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
The Black Duck Army is back—bigger, badder, and armed with alien tech! In Gunslugs 2, chaos reigns as you blast through tanks, choppers, giant robots, and hordes of relentless minions. This action-packed, over-the-top run-and-gun adventure is a wild tribute to classic 80s and 90s action movies.
- 6

Retro Classix: Joe & Mac - Caveman Ninja
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Grab your club and get ready to go on a wild, prehistoric adventure with the Cavemen Ninjas – Joe & Mac! Play as Joe and Mac, two cavemen who fight against enemy cavemen and dinosaurs using prehistoric weapons.
- 7

Contra Anniversary Collection
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
The Contra Anniversary Collection brings this classic Run and Gun franchise back to modern platforms and a new generation of gamers.
- 8

Guns, Gore & Cannoli
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Guns, Gore & Cannoli - An over-the-top, comical and fast-paced action game with hand-drawn graphics set in the Roaring Twenties. An all-you-can-shoot fest where you embody Vinnie, a mobster with a mission in a city controlled by gangsters and plagued by zombies. Featuring up to 4-man local co-op.
- 9

Breach & Clear
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Breach & Clear brings deep tactical strategy simulation to PC, Mac and Linux! Build your Special Operations team, plan and execute advanced missions, and own every angle.Choose your real-world squad -- US Army Rangers, Germany's KSK, Canada’s JTF2, UK SAS, and more -- and take on a variety of foes with different skill-sets and...
- 10

Breach & Clear: Deadline Rebirth (2016)
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
A deadly new breed of human monster is on the rise, and it’s up to players to stop the infestation before it spreads. Breach & Clear: DEADline Rebirth is a new and greatly improved version of B&C: Deadline, the follow-up to Breach & Clear, the critically acclaimed hybrid tactical strategy game.
- 11

Saturday Morning RPG
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required.
Saturday Morning RPG is an episodic JRPG set in world heavily inspired by 1980s Saturday morning cartoons and pop culture.
- 12

Fat Chicken
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Fat Chicken is a REVERSE TOWER DEFENSE game where you fatten up farm animals for slaughter by pumping them full of hormones, overfeeding them and basting them with antibiotics to keep them alive so they're worth more when you turn 'em into tasty, tasty packaged meat...it's what's for dinner!
- 13

Cylinder: Puzzles Returned
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Looking for a new spin on puzzle games?? Rotate your expectations and stack your high score in Cylinder!
- 14

Nickelodeon Splat Pack
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Relive the 90s in this collection of classic Nickelodeon games! GUTS, Rocko's Modern Life, and AAAHH!!! Real Monsters are back.
- 15

Earnest Evans Collection
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action and Adventure with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Three classic action games return in the Earnest Evans Collection: Earnest Evans, El Viento, and Anett Returns! Can you put an end to Al Capone's evil plans and thwart the resurrection of the Dark Lord Hastur?
- 16

Rugrats: Retro Rewind Collection
Single-player alternative to Ren & Stimpy Happy, Happy, Joy, Joy, Collection — playable solo, no multiplayer required. Shares Action and Adventure with Ren & Stimpy Happy, Happy, Joy, Joy, Collection.
Hold onto your diapers! Rugrats: Retro Rewind Collection brings together the ultimate collection of Tommy, Chuckie, Phil, Lil, and Angelica’s greatest hits.