Games Playable on 1.5 GHz CPU / 2 GB RAM: Retro, Indie, Browser Titles

That’s a very low-end spec (old laptop/basic desktop). Here’s what might run:

Possible

• 90s/early-2000s 2D classics: Super Mario Bros., Zelda, Tetris, Pac-Man, SimCity 2000, Civ II, StarCraft (via emulators/GOG).
• Lightweight indies: Check min specs—many pixel-art/2D titles work.
• Browser games: Designed for low power.

Unlikely

• Modern 3D titles (last 5–10 years).
• High-fidelity graphics/physics/AI.
• Large open-world games.

Caveats

• OS matters—Win 10 may choke on 2 GB RAM.
• Even old games may need lowest settings.
• Emulation adds overhead.

Best Approach

Check each game’s minimum specs (Steam/GOG/dev site). For newer experiences, upgrade CPU/RAM/GPU—even modest gains help dramatically.