Games like Sunderfolk
Games like Sunderfolk include Demeo, Stolen Realm, Fell Seal: Arbiter's Mark, Wildermyth, and Jagged Alliance 3. We matched them by the tags players give Sunderfolk on Steam (Tactical RPG, Turn-Based Tactics, Fantasy, Party-Based RPG, and PvE): closest matches first, and among equally close ones the better-known games.

Demeo
Shared: Turn-Based Tactics · Tactical RPG · RPG

Stolen Realm
Shared: Turn-Based Tactics · Tactical RPG · Party-Based RPG

Fell Seal: Arbiter's Mark
Shared: Turn-Based Tactics · Tactical RPG · RPG

Wildermyth
Shared: Party-Based RPG · Turn-Based Tactics · Tactical RPG

Jagged Alliance 3
Shared: Turn-Based Tactics · Tactical RPG · Strategy

Wartales
Shared: Party-Based RPG · RPG · Turn-Based Strategy

XCOM 2
Shared: Turn-Based Tactics · Strategy · RPG

FINAL FANTASY TACTICS - The Ivalice Chronicles
Shared: Turn-Based Tactics · Tactical RPG · Fantasy

Warhammer 40,000: Rogue Trader
Shared: Tactical RPG · RPG · Turn-Based Strategy

TROUBLESHOOTER: Abandoned Children
Shared: Tactical RPG · Turn-Based Tactics · Party-Based RPG

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

For The King II
Shared: Party-Based RPG · RPG · Turn-Based Strategy

King's Bounty II
Shared: Fantasy · Tactical RPG · Turn-Based Strategy

The Last Spell
Shared: Turn-Based Tactics · Turn-Based Strategy · Tactical RPG

Expeditions: Rome
Shared: Party-Based RPG · Turn-Based Tactics · Tactical RPG

Symphony of War: The Nephilim Saga
Shared: Tactical RPG · Fantasy · RPG

Inkbound
Shared: Tactical RPG · Turn-Based Tactics · PvE

RAID: Shadow Legends
Shared: Party-Based RPG · RPG · PvE

Divinity: Original Sin - Enhanced Edition
Shared: Fantasy · RPG · Party-Based RPG

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Tactical RPG · Turn-Based Strategy

King Arthur: Knight's Tale
Shared: Tactical RPG · Turn-Based Tactics · RPG

Solasta: Crown of the Magister
Shared: Fantasy · RPG · Party-Based RPG

Tactics Ogre: Reborn
Shared: Tactical RPG · Turn-Based Tactics · RPG

Gloomhaven
Shared: Tactical RPG · Party-Based RPG · Turn-Based Strategy