Build an Online Game In a Simple Database

0:00 Intro 1:27 What is SpacetimeDB? 7:24 How SpacetimeDB is different 11:06 Best use cases and limitations 15:55 How it works: modules, reducers, transactions 19:34 Publishing and hot-swapping server code 20:21 Client model: reducers for writes; live queries and permissions 25:52 Scaling and memory 28:40 Per-match databases and the actor model 31:21 Performance: reducer duration, locks vs MVCC, and offloading work 37:48 Starter projects and analytics; community dashboards 41:12 Authentication: OpenID Connect, Spacetime Auth, and Steam 46:07 Platform philosophy: generalized vs specialized 51:25 UGC and user-generated logic 55:05 Origins, team structure, and optimization milestones 57:27 Full history/time travel and postmortems 59:14 Scaling by game type; video calling experiment and event tables 1:02:42 Make it easy & LLM-friendly 1:07:48 Comparing Firebase/Supabase/Vercel; why we built it 1:12:09 Scheduled reducers, tickless servers, and timers as tables 1:13:57 Matchmaking with SpacetimeDB (Underdogs VR, Postgres wire) and libraries 1:17:58 Asynchronous multiplayer and efficiency 1:21:53 Business model: self-hosting, Main Cloud free tier, licensing 1:26:48 Avoiding vendor lock-in (SpatialOS lesson) 1:27:28 BitCraft origins and vision 1:32:11 Learning from veteran reviews; OSRS vs WoW philosophy 1:36:12 Building costs, biggest design challenges, and live updates 1:39:43 Core identity: simulating civilization, community, and expectations 1:42:35 Outro