Games like Solstice
Games like Solstice include Sands of Salzaar, Mount & Blade II: Bannerlord, The Scroll of Taiwu : Beyond The Dome, UFO 50, and Don't Starve Together. We matched them by the tags players give Solstice on Steam (Strategy, Adventure, Indie, Open World, and Retro): closest matches first, and among equally close ones the better-known games.

Sands of Salzaar
Shared: Strategy · Open World · Indie

Mount & Blade II: Bannerlord
Shared: Strategy · Open World · Adventure

The Scroll of Taiwu : Beyond The Dome
Shared: Strategy · Open World · Indie

UFO 50
Shared: Indie · Retro · Strategy

Don't Starve Together
Shared: Adventure · Open World · Indie

Hero's Adventure: Road to Passion
Shared: Open World · Strategy · Indie

Mount & Blade: Warband
Shared: Strategy · Open World · Adventure

Retro City Rampage™ DX
Shared: Open World · Indie · Retro

Where Winds Meet
Shared: Open World · Adventure · Strategy

Palworld
Shared: Open World · Indie · Adventure

Space Rangers HD: A War Apart
Shared: Strategy · Adventure · Open World

Yaoling: Mythical Journey
Shared: Strategy · Adventure · Open World

Beat Cop
Shared: Indie · Adventure · Retro

The World of Kungfu: Dragon and Eagle
Shared: Indie · Adventure · Strategy

Organ Trail: Director's Cut
Shared: Indie · Strategy · Retro

Rock 'N' Roll Defense
Shared: Strategy · Adventure · Indie

Bully: Scholarship Edition
Shared: Adventure · Open World · Classic

Wobbly Life
Shared: Adventure · Open World · Indie

Warlord: Britannia
Shared: Strategy · Open World · Indie

Don't Starve
Shared: Adventure · Indie · Open World

觅长生
Shared: Strategy · Open World · Indie

Space Pirates And Zombies 2
Shared: Strategy · Indie · Open World

Home Behind 2
Shared: Strategy · Adventure · Indie

Mount & Blade
Shared: Strategy · Open World · Adventure