19 Best PC Games You Can Play Under 100 MB

If you’re searching for the best PC games under 100 MB, you’re in the right place. These small-sized games deliver fun without eating up your hard drive or slowing down your system.

If you’ve got a low-spec machine or a weak internet connection, downloading 40GB triple-A titles just isn’t realistic. These picks solve that problem without feeling like a downgrade.

Top Games Under 100 MB to Try Right Now

1. Cave Story

Cave Story is a fan-made action-adventure game with pixel graphics and tight gameplay. You play as a quiet hero with no memory, dropped into a strange underground world full of danger and charm.

Game Highlights:

• Story with multiple endings
• Classic retro graphics
• Weapons and fast-paced combat

→ Download from the official Cave Story website

2. Spelunky Classic

Spelunky Classic is a tough-as-nails platformer where every run is different. You explore underground caves, dodge traps, and grab treasure. One wrong move, and you’re toast — but that’s part of the fun.

Game Highlights:

• New level layouts every time
• Combines action with smart exploration
• Easy to pick up, tough to master

→ Get it from the Spelunky Classic official page

3. OpenTTD

OpenTTD is a transport sim where you build roads, trains, and air routes to grow a business empire. If managing logistics sounds boring, this game might surprise you. It’s satisfying to watch everything run smoothly — or scramble to fix it when it doesn’t.

Game Highlights:

• Deep strategy with loads of freedom
• Mods and custom maps supported
• You can play solo or with friends

→ Visit the OpenTTD official site

4. Paintball 2

Paintball 2 is an online shooter that ditches bullets for paint. It feels like an old-school LAN party, with fast action and colorful splats. If high-end shooters lag or crash your system, this one runs smoothly on just about anything.

Game Highlights:

• Fast-paced FPS gameplay
• Online multiplayer with active servers
• No gore, just paintball chaos

→ Play now via the Paintball 2 website

5. GeneRally

GeneRally is a top-down racing game with basic graphics but smart design. You race against bots or friends, tweak your car, or even design your own tracks. It’s easy to jump into, but hard to put down.

Game Highlights:

• Lightweight racing with retro charm
• Customizable cars and tracks
• Great for quick sessions or long tournaments

→ Download from the GeneRally official page

6. Doom (Shareware)

The shareware version of Doom (1993) is a historic FPS milestone from id Software that fits well under 100 MB. It introduced fast-paced demon-slaying combat, modding potential with WAD files, and revolutionized multiplayer.

Game Highlights:

• Fast-paced FPS
• Classic mod support

→ Get it on Archive.org

7. Abuse

Abuse (1996) by Crack dot Com is a dark, side-scrolling shooter that blends platforming with run-and-gun mechanics. The innovative aim-and-shoot system, using the mouse to aim and keyboard to move, offered a more refined experience than platformers of its era.

Game Highlights:

• Side-scrolling shooter
• Unique mouse-and-keyboard control

→ Get it on GitHub

8. Dink Smallwood

Dink Smallwood (1997) is a quirky action-RPG resembling Zelda in humor and mechanics. Featuring an open-ended world, NPC trading, and clever dialogue, it quickly fostered a modding community once it became freeware.
The joke-filled tone makes it friendly and entertaining for casual or younger players.

Game Highlights:

• Top-down action-RPG
• Modding and community support

→ Get it on RTSoft

9. Shadow Warrior Classic Complete

Shadow Warrior (1997), built on the Build engine, blends martial arts, gunplay, over-the-top cartoonish gore, and offensive humor. Lo Wang, the protagonist, blasts through neon-lit levels with katanas and guns.

Game Highlights:

• Fast-paced FPS
• Martial arts and gunplay mix

→ Get it on GOG

10. Tyrian 2000

A top-down ship-shooter from 1995, Tyrian 2000 is beloved for its upgrade system, quirky story arcs, and fast action. It gained cult status due to its polish and inventive weapon combos.

Game Highlights:

• Vertical shooter
• Weapon customization

→ Get it on GOG

11. Castlevania II: Simon’s Quest (Remake PC)

This fan-made PC port of the NES classic preserves tight platforming and gothic ambiance. Even under 100 MB, it evokes nostalgia with its soundtrack, boss battles, and spooky castle locations.

Game Highlights:

• Platforming and exploration
• Gothic theme and soundtrack

→ Get it on Game Jolt

12. TrackMania Nations Forever

TrackMania Nations Forever (2008) is a free arcade racer that supports online time-trials and map sharing.

Game Highlights:

• Online time-trials
• Custom track editor

→ Get it on Steam

13. Alien Shooter

Alien Shooter (2003) may look dated, but it delivers intense twin-stick shooter mayhem with upgrades and hordes of enemies.

Game Highlights:

• Top-down shooter
• Swarms of enemies and upgrades

→ Get it on Steam

14. Stargunner

Stargunner (1996) from Apogee features colorful side-scrolling space shooting and animated cutscenes.

Game Highlights:

• Side-scrolling space shooter
• Classic retro visuals

→ Get it on GOG

15. One Must Fall: 2097

This ’90s robot-fighter pits human-controlled mechs in tournaments, offering deep combos and strategies. This version is a working archived freeware copy.

Game Highlights:

• Robot-based 2D fighting
• Tournament and combo system

→ Get it on Mybandonware

16. SuperTux

Originally for Linux, SuperTux is a freeware clone of early 2D platformers starring Tux the penguin.

Game Highlights:

• Family-friendly platformer
• Runs on nearly any system

→ Get it on SuperTux Official Site

17. Soldat

Soldat (2002) is a side-scrolling multiplayer shooter featuring jetpacks, grappling hooks, and ragdoll physics.

Game Highlights:

• Multiplayer 2D shooter
• Jetpacks and ragdoll physics

→ Get it on Steam

18. Liero

Liero (1998) is a 2D real-time Worms-style combat game with destructible terrain and soil-scorched battles.

Game Highlights:

• Worms-style real-time combat
• Fully destructible terrain

→ Get it on Liero

19. Braid (Demo)

The demo of Braid (released 2008) showcases its first few time-manipulation levels with hand-painted visuals.

Game Highlights:

• Time-based puzzles
• Hand-drawn art style

→ Get it on Steam

💡 Tips for Installing Small PC Games

Even small games can add up over time. If you install a few, make sure to clean up old files you’re no longer using. Also, double-check the system requirements. These titles are super lightweight, but some still need basic DirectX or .NET support.

If you want something slightly bigger but still manageable, check out the best PC games under 500 MB, they strike a great balance between size and gameplay depth.

For players who can spare a couple of gigabytes, this list of top PC games under 2 GB includes even more story-rich titles and expanded mechanics.

❓ Frequently Asked Questions

🧾 Final Take

If you’re low on space or just want something fast and fun, these games deliver. You don’t need a gaming rig or 50GB of free space to enjoy great design and gameplay. Just pick one and get started — no stress, no waiting.