PSP Games Like The Sims 2 / Castaway: Best Alternatives

PSP's library has no direct equivalent to The Sims 2 (full life sim) or The Sims 2: Castaway (survival life sim). Closest experiences:

Life Sim / Social

• The Sims 2 (PSP) — Exists. Stripped: no open world, no aging, limited lots, no aspirations. But: create Sims, build rooms, fulfill wants, woohoo (fade to black). Best match.
• MySims (PSP) — Chibi style, town building, essences, tasks. Simpler, younger skew.
• Animal Crossing: Wild World (DS) — Not PSP, but DS plays on 3DS/DSi. Real-time village life. Closest feel.

Survival / Crafting / Island

• Harvest Moon: Boy & Girl / Hero of Leaf Valley (PSP) — Farming, marriage, festivals, mining. Deep, slow, rewarding. Best "castaway" vibe.
• Rune Factory: A Fantasy Harvest Moon (PSP? No — DS only) — Skip.
• Lost in Blue (DS) — Survival island, two chars, micromanage stats. Brutal. DS only.
• Survival Kids / Lost in Blue 2/3 (DS) — Same.

Creative / Sandbox

• LittleBigPlanet (PSP) — Platformer + level creator. Share online (servers dead). Local create/play.
• Minecraft (PSP? No — Vita/PS3/PS4/PS5) — Not on PSP.

Unique PSP Gems

• Patapon 1/2/3 — Rhythm/strategy. Command tribe via drum beats. Addictive, unique.
• Monster Hunter Freedom Unite — Hunt, craft, upgrade. 400+ hrs. Co-op ad-hoc (local) / online (via PS3 AdHoc Party / PPSSPP).
• Valkyrie Profile: Lenneth — Norse RPG, side-view combat, deep story.

Top Pick: The Sims 2 (PSP) for life sim. Harvest Moon: Hero of Leaf Valley for survival/farming. Patapon for something totally different.