--- title: 2026 Retrocomputing Challenge: Custom RISC-V Processor... description: A custom RISC-V CPU was built on an FPGA and used to run a retro gaming console. The system runs on a Terasic DE0-Nano board with 32 MB of RAM and boots into a... canonical: https://daily.dev/posts/2026-retrocomputing-challenge-custom-risc-v-processor-for-retro-system-xfefcaphs twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: 2026 Retrocomputing Challenge: Custom RISC-V Processor For Retro System | daily.dev og:description: A custom RISC-V CPU was built on an FPGA and used to run a retro gaming console. The system runs on a Terasic DE0-Nano board with 32 MB of RAM and boots into a... og:url: https://daily.dev/posts/2026-retrocomputing-challenge-custom-risc-v-processor-for-retro-system-xfefcaphs og:image: https://api.daily.dev/og/posts/xFefCapHs.png og:image:alt: 2026 Retrocomputing Challenge: Custom RISC-V Processor For Retro System og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # 2026 Retrocomputing Challenge: Custom RISC-V Processor For Retro System **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary A custom RISC-V CPU was built on an FPGA and used to run a retro gaming console. The system runs on a Terasic DE0-Nano board with 32 MB of RAM and boots into a launcher with 32 games. A 64×32 display limitation keeps the same aspect ratio as the original DOOM while sustaining 45 FPS. The project writeup covers bare metal design, the CPU itself, video signal timing, and a Wolfenstein-style raycaster implementation. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How much RAM does a custom RISC-V retro gaming console on an FPGA need to run games like DOOM-style raycasters? 32 MB of RAM is enough to run a custom RISC-V CPU design on a Terasic DE0-Nano FPGA board with a launcher of 32 games, including a Wolfenstein-style raycaster. The system limits its display to 64x32 pixels to match the original DOOM's aspect ratio and sustains 45 FPS despite being a low-power design. _Readers building FPGA-based RISC-V systems can track similar hardware experiments on daily.dev._ ## Similar posts on daily.dev - [Running DOOM on our Custom CPU and Going Viral](https://daily.dev/posts/running-doom-on-our-custom-cpu-and-going-viral-cokoeapf1) · Hacker News · 0 upvotes · 0 comments - [Hackaday Europe 2026 – Building A Retro PC From Scratch](https://daily.dev/posts/hackaday-europe-2026-building-a-retro-pc-from-scratch-fqbse5mn7) · Hackaday · 0 upvotes · 0 comments - [GitHub - Wren6991/RISCBoy: Portable games console, designed from scratch: CPU, graphics, PCB, and the kitchen sink](https://daily.dev/posts/github---wren6991-riscboy-portable-games-console-designed-from-scratch-cpu-graphics-pcb-and-th-zozzz111p) · Hacker News · 0 upvotes · 0 comments - [Running DOOM On A Custom CPU Built From Scratch](https://daily.dev/posts/running-doom-on-a-custom-cpu-built-from-scratch-ro5igvezm) · Hackaday · 0 upvotes · 0 comments --- Tags: [#game-development](https://daily.dev/tags/game-development), [#fpga](https://daily.dev/tags/fpga), [#retrocomputing](https://daily.dev/tags/retrocomputing) [View this post on daily.dev](https://daily.dev/posts/2026-retrocomputing-challenge-custom-risc-v-processor-for-retro-system-xfefcaphs) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"2026 Retrocomputing Challenge: Custom RISC-V Processor For Retro System","url":"https://daily.dev/posts/2026-retrocomputing-challenge-custom-risc-v-processor-for-retro-system-xfefcaphs","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/2026-retrocomputing-challenge-custom-risc-v-processor-for-retro-system-xfefcaphs"},"datePublished":"2026-10-29T05:12:51.116Z","dateModified":"2026-10-29T05:13:14.031Z","description":"A custom RISC-V CPU was built on an FPGA and used to run a retro gaming console. 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